Budget build

Take a look at Tom's May '09: $600 Gaming PC.
http://www.tomshardware.com/review [...] ,2310.html

You could shave off a few dollars on the case, power supply and maybe the hardrive. Maybe you could get a slightly better motherboard and try to overclock that e5200... I know you're lost on that, but do some research, because it will give you a noticeable increase in performance with your games, since the stock speed on that cpu is a little too slow and will bottleneck that high end gpu.

If you want to save even more, you could get a 4770... I know you said you prefer nvidia gpu's, but that is an excellent video card, up to you really.

This is what i think.

LITE-ON 52X CD Burner Black ATAPI/E-IDE Model DH-52R2P-04 - OEM

Antec Three Hundred Black Steel ATX Mid Tower Computer Case - Retail

Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM

BFG Tech BFGEGTX260896OCE GeForce GTX 260 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail

Nvidia Gift Call of duty - World at war - OEM

OCZ StealthXStream OCZ500SXS 500W ATX12V / EPS12V Active PFC Power Supply - Retail

A-DATA 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model ADQVE1A16K - Retail

GIGABYTE GA-G31M-ES2L LGA 775 Intel G31 Micro ATX Intel Motherboard - Retail

Intel Pentium E5200 Wolfdale 2.5GHz LGA 775 65W Dual-Core Processor Model BX80571E5200 - Retail

about 525 shipped. After MIR it is 495 shipped.