Graphics partially make a game, play Chronicles of Rid**** on the xbox, and the feeling you get (it has the best xbox graphics I've ever seen). it does add something in my oppinion. however the PS2 has more games. so it's really the games that sell the console.
My vote goes for XBox, I have it myself and there are pretty much good games out and coming out very soon. Halo 2, Sudeki, Fable, Half-Life 2, Doom 3 etc,. it's all gonna be good.
if you like multiplayer. I would also go for the xbox. xbox live is much more stable than the PS2 online variant.
The harddrive pretty much finishes it. you can save a lot of money cause you do not need to buy memory cards.
my vote: xbox.
Hitokiri, the link you posted is actually quite...not usefull..
The guy obviously knows nothing of the Xbox period. also it's outdated.