We've covered every zone of fandom possible - just click the links to find out what will make gift-giving day the Best Day Evar for the scifi nerds of the world.

Gifts for the Star Wars Fan

Gifts for the Star Trek Fan

Gifts for the Battlestar Galactica Fan

Gifts for the Doctor Who Fan

Gifts for the Batman Fan

Gifts for the Harry Potter Fan

Gifts for the Whedonverse Fan

Gifts for the Twilight Fan

Gifts for the Steampunk Fan

Gifts for the Zombie Fan

Serenity Complete and Official Map of the Verse: Plan your smuggling route with this map of the multi-star Serenity Verse. Perfect for learning more about the Verse, roleplaying, or just to hang on your wall. $26.95 from Quantum Mechanix.

Buffy and Serenity Comics: For those who miss Buffy, they can get caught up with the Season Eight comics. The most recent collection, Wolves at the Gate was released last month, following the events of The Long Way Home and No Future for You (You can get all three books from Amazon for $42.18). The second Serenity comic collection Better Days was also released this fall, and takes place between the Firefly television series and the Serenity film ($9.95 from Amazon).

Serenity Ornaments: Tree-having Browncoats can appreciate these Christmas ornaments, which depict the Firefly-class spaceship Serenity. $17.99 from Entertainment Earth.

The Zombie Survival Guide Deck: A handy pocket-sized version of Max Brooks' classic book, these cards offer a quick and easy reference that should prove vital in the even of a zombie outbreak. $12.55 from Amazon.

Dismember Me Plush Zombie: Practice dismembering the undead from the comfort of your desk or home. Tear off the limbs, head, and torso of this zombie toy, and he'll just come back for more. $12.99 from Think Geek.

Brain Gelatin Mold: You may as well practice eating brains with this brain-shaped gelatin mold. The mold creates a gooey, lifelike brain and includes instructions on how make a sugary gray matter substitute. $6.99 from Think Geek.

Cylon Toaster: Celebrate BSG's favorite racial slur each morning. This handsome appliance burns a Cylon centurion head into one side of your toast and the phrase "Frak Off!" into the other. $65.00 from NBC.

BSG Themed Tees: The BSG store at NBC offers a wide range of Galactica-themed apparel, or you can head over Enclothe to grab a "Baltar is My Homeboy" t-shirt. Of course, Neighborhoodies offers these stylish "Cylons are for Lovers Hoodies" designed by your friends at io9.

Cylon Action Figures: If you've got $8590 to spend on your BSG-loving loved one, you could drop it on this life size Cylon Centurion. But an 8" New Caprica Centurion is much more economical ($14.99 from Think Geek), as this Head Six action figure ($20.00 from NBC; also available in Caprica, Apollo, and Hot Dog) and BSG MiniMates ($9.00 from NBC).

Steampunk Anthology: Edited by io9 contributors Jeff and Ann VanderMeer, this anthology features steampunk stories from Neal Stephenson, Michael Chabon, and Michael Moorcock. $10.17 from Amazon.

Extraordinary Engines: Another steampunk themed anthology, Extraordinary Engines also includes stories by Michael Moorcock and Jeff VanderMeer, as well as Stephen Baxter and Ian MacLeod. $7.99 from Amazon.

Handmade Crafts: Handcraft site Etsy is a veritable treasure trove of steampunk-style handmade goods, so you're sure to find something to suit your favorite steampunker. Various prices from Etsy.

Star Trek: Alternate Realities: This five disc set collects 20 episodes from all five Star Trek series that deal with alternate realities, parallel lives, and, of course, the popular Mirror Universe. Available for $27.99 from Amazon.

Phaser and Communicator Set: Put on your primary-colored tunics and put together your away team with this set. These full-sized replicas light up and emit sound effects from the show. Available as a set for $39.99 from Think Geek.

Harry, A History: The True Story of a Boy Wizard, His Fans, and Life Inside the Harry Potter Phenomenon: The webmistress of Harry Potter fansite The Leaky Cauldron, Melissa Anelli traces the history of Potter fandom and tries to explain the meteoric rise of Rowling's books. $10.88 from Amazon.

Varsity Quidditch Apparel: Now that Quidditch has become an intercollegiate sport, players and fans will need to display their allegiance to their favorite team. Gryffindor supporters can pick up their t-shirts and hoodies from CafePress.

The Time Traveller's Almanac: This handy, fully illustrated guide to time-space teaches you all you need to know to about the species, places, and notable figures of the Doctor Who universe, as well as little known "facts" from Earth's own history. $21.94 from Amazon.

Doctor Who Laser Battle Set: Reenact the Doctor's battles against the Master with this set of screwdrivers. Choose the Doctor's sonic screwdriver or the Master's laser screwdriver and try to hit your opponent five times before they hit you. $59.99 from Think Geek.

Dalek Voice Changer Helmet: Have your friends and colleagues cowering behind the sofa by donning this helmet and yelling "Exterminate!" The death beam lights up, but will not actually disintegrate your coworkers. $79.99 from Think Geek.

Batman Gotham Knights: Six animated adventures reveal the further adventures of Bruce Wayne. Batman battles Scarecrow, Killer Croc, and Deadshot, and uses high-tech weapons and ancient techniques to defend Gotham City. The two-disc collector's edition is available for $19.99 from Amazon.

LEGO Batman: Explore LEGO Gotham City as minifig Batman and Robin, capturing Batman's foes and putting them in Arkham Asylum. Then play as the villains, committing crime and mayhem while dodging the dynamic duo. Available for Playstation 2 and 3, Xbox 360, Nintendo Wii, and Nintendo DS.

Batman: The Complete Animated Series: The complete boxed set of what many people consider the definitive representation of the caped crusader includes all 109 episodes of the animated series, commentaries on 12 episodes, eight featurettes, and a new documentary on Batman's animated evolution. $75.99 from Amazon.

Bat-Manga!: The Secret History of Batman in Japan: A Japanese publisher acquired the rights to the Batman character and for a year, published a Japanese version of Batman and Robin's adventures. Translated and collected for the first time here, the comics show a Batman influenced by the culture of 1960s Japan. $37.80 from Amazon.

Twilight T-Shirts: Announce your love of dazzling vampires with official merchandise from Hot Topic or fan-made shirts from Zazzle.

Bella's Engagement Ring: Sure to make girls look at their ring fingers and sigh, this ring is available as a fashion ring ($59.00), fine ring ($549.00), or genuine diamond ring ($2,199.00) from Twilight Teez.

Twilight Books: Stephenie Meyer's guide to the Twilight saga doesn't come out until next year, but a box set of all four books in hardcover is available ($45.65 from Amazon), as is Meyer's latest book, The Host.

Essence of Twilight: Attraction in Twilight is based on the scent of the characters, and the Essence of Twilight products give you the opportunity to smell like Edward, Bella, Alice, or Jacob. Various prices from Etsy.