Thanks for the update.
I myself have a a 3.0HT P4 and an ATI 9800XT, and while things are pretty OK, framerates can get into the high-teens on the deck when there's a lot of action, and due to the projector, I must run 1024x768 resolution, so I have 2X AA turned on to help smooth the jaggies.
I'm looking at a 7600GT card (which sites like tomshardware say is better than the 7800GS in some ways, and worse in others) and was wondering what the results would be like.
Now I have an idea, so I think I'll get that card.
Thanks again,
Llama