Yeah. I was thinking about dropping some money into it. Most cards I see are PCIe 2.0. Don't think my board supports that. I dunno, haven't done to much research or looking yet.
I am 99% sure they are compatible.
edit:
A quick Google search reveals that a PCI 2.0 card will have no problems running on a PCIe 1.0 board, but you should give it a deeper look before you take the plunge. Shouldn't be a problem though.
Your system is pretty similar to mine except I run XP and an 8800GT. I pretty much max out Borderlands without issue.
Yea games still lean almost fully on GPUs as long as the CPU is decent, and an 8800GT is a damn good card; much better than the 7950GT.
My specs are near identical to Scarys, though I've overclocked my C2D to 2.4 and have 4GB of RAM.
The difference is in the GPU. My 8800GTX, aside from a few games like Crysis, blows everything out of the water at 1080p.
I used to have 2GB RAM, until I upgraded to 4GB last year, and moved on to a 64bit OS, and the difference has only been in higher min. frames. For gaming, there is nothing like upgrading the video card.
My laptop has a core i5 with 4GB of DDR3 RAM, and while it blows away my desktop when it comes to photo and video editing software, and encoding etc., it can't touch my desktop's gaming performance because of the significantly weaker GPU.