Soul by Ludacris Headphones

Jay-Z, Lady Gaga, Diddy. It's easy to assume that celebrity-endorsed headphones have become a cash-fueled lark. But hip-hop artist-actor Ludacris offers these five models—from in-ear buds to noise-canceling cans—that dispense serious ear candy. Price to be announced early 2011;

WowWee Cinemin Slice projector

This projector wants you to show off. Plug in nearly any video-out device and display your movies, photos, and PowerPoint presentations in a (preferably dimly lit) room at a size of up to 60 inches. Available January 2011, $430;

Zoom Q3HD video recorder

There are more handheld video recorders these days than new movies starring Zach Galifianakis. But what do most of them lack? Solid audio. The Zoom Q3HD video recorder captures both video and sound in high-definition. $300;

Summit Series snow goggles

On the days when ESPN isn't documenting your corkscrew 720, you can always turn to ski goggles that record high-definition video highlights. The camera also takes 12-megapixel stills, and there's even a wind guard for the embedded mic (to record when you yell "Oh, shit!"). 1080p model available fall 2011, $400;

Booq Mamba Catch bag

Book bags are just for bookworms, right? Not Booq bags. This company's lineup is meant to make finding spaces for gadgets an intuitive experience. Everything has its place. Don't think a bag can change your life? Strap it on. $150;

Xi3 modular computer

Call it the incredible shrinking computer. The engineers at Xi3 found a way to compress the essentials of a desktop into something nearly the size of a Rubik's Cube. And it's easy to upgrade anytime you need a performance boost. Just remove the four screws yourself and easily swap out parts, such as USB ports, motherboards, and graphics cards. From $850;