Armed Assault

Ok here it is,
i upgraded my computer from a 2600 with 512mb ram to a 4000+ amd 64bit with 2x512 pc3200 ram and i have a fx5200 card which is 128mb and its good but not good enough to run armed assault, this is a link to my motherboard http://www.asrock.com/product/939Dual-SATA2.htm

im thinking of getting a nVIDIA 7800GTX
but aslong as it runs armed assault well im happy
i have not got much to spend but if i have to, i have to

thanks in advance
chris

Are you looking for advice on what card to buy? What's your budget?

Might be better off with a 7950GT or a X1900XT. Both cost about the same, should perform slightly better.