So ya like huge levels? Get Battlefield 1942. You haven't seen huge levels until you've played that game. It also has a very good coop mode but be warned...the bots in BF1942 definitely do not help system performance. Maybe a p4 2.53ghz or higher would run smoothly with bots set to a challenging AI, though my graphics card might have seomthing to do with it too. Anyway, BF1942 is the BOMB...you can fly Corsairs, bombers, flying fortresses, drive all sorts of tanks and mobile artillery, operate AA guns, drive jeeps and armored trucks, and even captain ships and submarines. There's nothing better than flighing your torpedo plane towards the battleship that's shelling your beach, dropping a torpedo, and then doing a flyby as the battleship sinks below the surface. It really is a cool game, but have a powerful system.
I want to move to space, so I can overclock processors cooled to absolute zero.