I've kind of thought of switching to Amazon, but it sounds like a huge pain to find boxes, etc., plus it seems like they don't take tons of the games I'd want to trade in. I'm fine with Gamestop's trade in system...I just like Amazon's new prices, and the fact that Amazon sells new games, versus...
I've got an Asus N80 I like pretty well. Had it just over six months (I'm on it right now-use it for work and home).
They've got some new models that have both the high end Nvidia GPU *and* an LED backlit display like mine has (mine "only" has a Geforce 9600GTm, which is really just a faster clocked 8600GT...though it'll run everything out today, if not at full settings in the case of Crysis (though it's still more powerful than the console GPUs).