Me and a friend are thinking of building some ok comps just motherboard, cpu, and memory for around 450-500 what do you suggest if were gonna upgrade about xmas time and we wanna run hl2, wc3, unreal, tribes, and maybe a few other games.... also whats up with PCI Express? should we get a motherboard that supports that? I need a card that will rock hl2 so please let me know im thinking about getting a new 3d card too... so maybe Motherboard, Cpu, Memory, and 3d card... x800? PCI Express? let me know! pleasseeee