Okay, I do not play games much, but I thought it would be fun to put about 4-5 comps in my basement and when friends come over, play games. I pretty much only play, Bf1942, Half Life Platinum Pack, Hitman 2(Is this even multiplayer?), Madden 2002, and StarCraft. What are the bare minimums to play with others (I'm asking because I can get some PII 250-450 mhz for free and wanted to know if those would work)?