I've got a still strong socket 478 system but a new job has got me itching for a little more. Current: P4P800 SE, 3.2 p4, 2gb ram, 6800 128MB.
I've got two paths, roughly: A) Swap current 6800 128MB card with 6800GS or greater, for a difference of about 20-40 dollars after selling old card...