I'm a great scuba diver, though it's been a while since I've done some serious diving (one hobby that has lots of gadgets!)
Music - Modern pop, as well as 80s. Some J-POP. I'm a big fan of Radio Alice
Movies - Mostly hit movies -- Iron Man, Hunger Games, etc. Animation as well such as all WALL-E, Princess Mononoke
Books - Sci-fi, fantasy books, light novels. Some favorite series include the Wheel of Time and the Enders Game series
Shows - Mainly comedy! The Simpsons, Futurama, Arrested Development, 30 Rock, Firefly are some of my favorites
Google Reader... well, rats... how about Reddit instead?
A sense of humor
Good food... including bacon!