Grand Theft Auto: San Andreas, GTA:vice City and GTA 3
RAtchet and Clank is a good platformer title
Champions of Norath and Baldur's gate 2 are great rpgs
I have heard Burnout 3 is a great driving game
Presently I m loving Mercenaries for the xbox but it is also out for the PS2. It is a combination of Grand theft auto and a war game set in North Korea- lots of stuff to blow up