Customizing a gaming computer. Need advice on video card and if the specs will properly fit together?

These are the specs I have chosen for this computer so far -----------

CD:LG 22X DVD±/±RW + CD-R/RW Dual Layer Drive (BLACK COLOR)



CAS:Apevia X-Dreamer 3 Mid-Tower Gaming Case w/ Side-Panel Window & Temperature Display



CPU:AMD AthlonTII X4 630 Quad-Core CPU w/ HyperTransport Technology



FAN:Thermaltake CL-P0466 SpinQ Gaming CPU Cooling Fan



HDD:Single Hard Drive (750GB SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD



MULTIVIEW:Non-SLI/Non-CrossFireX Mode Supports Multiple Monitors



Mother board: GigaByte GA-MA785GMT-UD2H AMD 785G Chipset Support DDR3 Ultra Durable™3 mATX Mainboard w/ 7.1 HD Audio, GbLAN, USB2.0, HDMI, SATA-II, RAID, 1 Gen2 PCIe, 1 PCIe X1 & 2 PCI



MEMORY:4GB (2GBx2) DDR3/1600MHz Dual Channel Memory Module (A-Data Gaming Series with Heat Spreader



POWERSUPPLY:600 Watts Power Supplies (XtremeGear SLI/CrossFireX Ready Power Supply



VIDEO:NVIDIA GeForce 9800 GT 1GB 16X PCI Express





If there is a better video card you could reccomend, it would be much appreciated, This comp is for gaming : WoW, CoD, ECT.



Here is a list of the cards they have available in my price range



ATI Radeon HD 5670 1GB DDR5 16X PCIe Video Card [DirectX 11 Support]



ATI Radeon HD 5750 1GB DDR5 16X PCIe Video Card [DirectX 11 Support]



NVIDIA GeForce GTS 250 1GB 16X PCI Express



Or if the one I have already chosen will be more than adequite for the job. I want good Frames per second.|||Go with the GTS 250!!! I have the 9800gt and can play some games on highest settings. But, only the games that don't mainly focus on the graphics card itself. With your specs you could do some gaming!



Plus, I believe the 250 is smaller than the 9800gt leaving you with more space in your case.



And! A GTS 250 is about the same as a 9800gtx+ but with more memory and clock rates. The 250 is pretty much the rebranded version of the 9800gtx+. But don't get the 9800gt and the 9800gtx+ confused! 9800gt<9800gtx+