hi i need some help on graphic cards

[aksampras]

ok hi, i bought a new computer it didnt come with a graphic card i can play cod 4 good, but it can not run cod MW 2, and i im gonna buy a graphic card of play.com, but i dont know if it will suit my computer basically i dont know what type of card/make i am looking for my computer settings are


fujitsu siemens computers GimbH HP

processor - Intel(R) Pentium(R) D CPU 2.80GHz 2.80 GHz

memory (RAM) = 3.00GB

system type = 32 bit operating system



i was thinking of getting this 1 but i have no idea i just wanna play some games


http://www.play.com/PC/PCs/-/667/87...0-Graphics-Card/Product.html?searchtype=genre

http://www.play.com/PC/PCs/-/668/87...0-Graphics-Card/Product.html?searchtype=genre


http://www.play.com/PC/PCs/-/668/87...B-Graphics-Card/Product.html?searchtype=genre

Computer:
Operating System Microsoft Windows Vista Home Edition
OS Service Pack Service Pack 2
DirectX 4.09.00.0904 (DirectX 9.0c)
Computer Name LOVELYHP-PC
User Name Lovely HP

Motherboard:
CPU Type DualCore Intel Pentium D 820, 2800 MHz (14 x 200)
Motherboard Name Unknown
Motherboard Chipset Intel Lakeport-G i945G
System Memory 3072 MB (DDR2-533 DDR2 SDRAM)
BIOS Type Award (09/15/06)
Communication Port ECP Printer Port (LPT1)

Display:
Video Adapter ALL-IN-WONDER X800 GT (128 MB)
Video Adapter ALL-IN-WONDER X800 GT (128 MB)
3D Accelerator ATI Radeon X800 GT (R430)


[ Processors / Intel(R) Pentium(R) D CPU 2.80GHz ]

Processor Properties:
Manufacturer Intel
Version Intel(R) Pentium(R) D CPU 2.80GHz
External Clock 200 MHz
Maximum Clock 3800 MHz
Current Clock 2800 MHz
Type Central Processor
Status Enabled
Upgrade ZIF
Socket Designation Socket 775

oh ye i ran that everest thing