that will play at shit resolution though.
I really could do with your current specs. Wot vid card u got , wot processer and imprtantly is you vid card AGP or PCI-E - you can check that in device manager.
Also if you going for a new card whats you maximum budget and i really need to know if your mainboard supports AGP or PCI-E . - THE CARD YOU HAVE SUGGESTED IS pci-e so if your motherboard is only AGP it wont fit .