1. “Less than three” Heart Necklace – Sterling Silver
Nerd love at its absolute finest. Your girl will likely screech a combination of “woot!” “OMG” “THX” and will definitely proclaim that she “less than three”s you. All you have to say is “NP.”

2. Lightmare Watch
This chunky watch with a rubber band has a novel way for displaying the time. You know how you’re expected to recall the position of numbers on a watch with a blank face? Well this watch operates on the same principle, but substitute a large inner dot for the hour hand position and a small outer dot for the minute hand position. Cool huh? NEW for ‘09: There’s a nerdy girl’s version (the white one).

3. Diskette Handbag
This is a totally unique black vinyl handbag with six real 3.5” high-density 1.44MB diskettes on each side (12 x 1.44 MB = 17.28 MB total). Two snap pockets, one with a zippered change pocket, and two elastic pockets are on the walls of the main compartment. A removable, magnetic latch holds the top edges together. It can fit keys, a cellphone, an iPod Mini, a wallet, and a few paperbacks. And make you look totally sweet!

4. Teal Triple Capacitor Necklace and Earrings
Three teal capacitors are connected together to form a striking yet suble necklace. The chain is a fine gauge, cable link steel chain adjustable from 18″ to 21″ via a sizing chain in the back.

5. Eprom Necklace
This is a really neat eprom reprogrammable memory chip with a window cut out revealing its prismatic, sparkley innards. This new version has a steel cable with a magnetic closure, a more secure, lead-wrapped cable attachment, and is available in two sizes. Only limited quantities are available and there is some minor variation between them as they are vintage. Really.

Want more? Check out more Geek Valentine’s Day Gifts for Girls

1.Ibiza Ride Leather Cuff – Black
This totally nerdy rock star version of the original Ibiza Ride watch is awesome and trendy. It features a super wide black leather cuff and an innovative buckle system.

2. #000000 Tie (Black Tie)
Black on black only, obviously. This will undoubtedly be the only option best for all black tie affairs–HA! Printed with a large “#000000″ –hexadecimal code for the color black, it’s sure to make all graphic designers and web developers giggle.

3. Floppy Disk Necklace – Ball Chain
Here’s a cool way to show off your love of things nerdy and retro. This cool necklace features a pendant made from a floppy disc hub, on an 18″ or 20″ ball chain.

4. Playstation Portable (PsP) Sours
If you’ve got a gamer boyfriend who’s attached to his PsP as much as he is to you, here’s a thoughtful way to give him the gift of candy this Valentine’s day. Each Sony’s Playstation Portable-shaped tin contains sour candy–the red version features sour cherry and the blue features sour raspberry.

Microcontroller Cufflinks
Now available in a larger size than before, these swank cufflinks are made from two matching black microcontrollers–microchips, basically. They’re classy and subtly nerdy at the same time.

Check out more ideas here: Geek Valentine’s Day Gifts for Guys