what games should i get on pc?? need guidence

wondering what games to get on pc so far i have got colin mcrae dirt, tony hawks pro skater 4(yes i know retro but its great), final fantasy 11 online.

need more games,, any suggestions, gears of war looked good and pro evo 2008....but dont know what to get need opinions

Sam, I'm not a Sport game fanatic, so I'll list the current games that I think are great (and even better than that :) )

Call of Duty 4 (FPS) - Definate MUST HAVE, even if you're not a fan of the genre, this is truly great (and addictive)
The Witcher (RPG)
The Orange Box (FPS/Puzzle)
World in Conflict (RTS)
Hellgate London(ACT-ADV/RPG/FPS)
Rainbow Six Vegas (FPS) - if you liked GoW, then you'll probably like this too...

Keep an eye out for these in the coming months / year...

Assassins Creed (PC)
Fallout 3
StarCraft II

...Crysis also has a lot of hype, though I haven't experienced the game personally, but worth a look at least.

Hope it helps...

Honestly, my 2 games that I switch between at the moment is Call of Duty 4 and The Witcher, both are really stunning games, looking at storyline, performance, addiction-rating, graphics, sound... well, pretty much all areas :)

Cheers

Crysis if you like FPS (Make sure your rig can handle it though)
Rome: Total War if you like Tactical Games.
Simcity 3000 if you like Simulators.

GTA San andreas

Ive been playing online all this week

I'm mostly a strategy gamer myself but i do play some action games. Here are some suggestions:

Medieval 2:Total War (turn based/real time battles)

Hellgate: London (action/adventure/MMO)

Call of Duty 4: Modern Warfare (FPS)

Play some demos and see what you like