I only have an XBox for a week or so, but here's my opinion: if you want a decent gamebox RIGHT NOW, buy a PS2. If you wanna be prepared for the future: buy an XBOX. The only advantage PS2 has over the XBOX is its number of games, but a game like Max Payne has proven that the PS2 has reached its limits (playing Max Payne on a PS2 after having played it on a PC is a torture: the speed sucks, the console has to load stuff in the middle of a level - and it takes a while...).

Allow me to make a silly comparison: when the DVD was introduced, you didn't buy a DVD-player because of the number of titles available on DVD - simply because there only were 10 or so. No, you bought it because of the potential. At that time (when the DVD was just introduced) if you wanted to see movies, you bought a VHS-player and some video-tapes.
Same goes for audio-tape vs. CD. And same goes for PS2 vs. XBox...?

And something else: what good are 2000 games? I can entertain myself with just Halo and the upcoming Splinter Cell for at least a couple of months... I'm pretty sure by that time a new top-title will be released that'll entertain me untill the next one comes out...