ok so im building a new system. Will be used for gaming. And price doesnt really matter but the most i would like to spend is 2000$
AMD Athlon 64 X2 4400+ / 2MB Cache / 2000MHz FSB / Socket 939 / Dual-Core / Processor with Fan
DFI LANPARTY nF4 SLI-DR Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard
7900 gt but which one? eVGA , bfg, xtx etc.
Corsair TWINX Dual Channel 2048MB
300gb Seagate hdd
Creative Labs Sound Blaster X-Fi XtremeMusic PCI Sound Card
Antec TruePower 2.0 TP2-550 EPS12V ATX12V 550W Power
oh and one question if i already have a microsoft professional cd can i install it on more then one computer?