Let me just show you what I used to build my computer:
TASK Mid-Tower Case (black) with 400W Power Supply, Model "TK-4730 A-04"
AeroCool SILVER BLADE I 80mm Case Fan, Model "Silver Blade I"
ASUS "A8V deluxe" Motherboard for AMD Socket 939 CPU
AMD Athlon 64 3500+, 512k L2 Cache
TR2TT (designed by Thermaltake) CPU Cooler with Copper base for AMD OPTERON & ATHLON 64, Model "TR2 M6 (K8 )"
Corsair Value Select (Dual Pack) 184 Pin 1G(512MBx2) DDR
PC-3200
Western Digital 120GB 7200RPM IDE Hard Drive, Model WD1200JBRTL
Sony DVD+/-RW Dual Layer Drive (Black), Model DW-D18A, OEM
SONY Black 16X DVD-ROM Drive, Model DDU1613/B2s, OEM
ATI RADEON 9800PRO Video Card, 128MB DDR, 256-bit, DVI/TV-Out, 8X AGP
Creative Labs Sound Blaster Audigy2 ZS Platinum PCI Sound Card, Model "SB0350"
Logitech X-530 5.1 Black Speaker System
CTX VL951T 19" CRT Monitor
Logitech BLACK Cordless Access Duo Optical Keyboard and Mouse USB + PS/2 104keys
lesson learned: any cordless mouse eats through batteries like nothing, I eventually wound up getting the Logitech MX1000 and will never need another mouse again. IMO if you are gaming this is the mouse to get anyway.
This is a monster, and not only handles games coming out today but will handle anything for a couple years. I get pretty solid fps on Counter Strike:Source, HL2, and WoW.
About your configuration, I wish I knew more about computers to comment on your choice of processor and video card. The card, more than the processor, sends up red flags though. Why a 9600? If it was me I'd spent the extra money on a 9800pro at least.