Gaming consoles are super hot this year with the next generation of consoles starting to come out with the advent of the Xbox 360. The other larger consoles are the same consoles being sold over the past couple of years with no technology changes (XBox, Gamecube, and PS2).
Making a splash in the console market since last Christmas are the handhelds however. The PSP leads the pack as the most advanced while the Game Boy Micro is a great value as well as the DS.
If you want to make a geek happy this Christmas, get them a video game console!