ceewi1 said:SLI'd 7900GTs would be another (more expensive) option, but your CPU is going to be something of a bottleneck anyway.
Don't think for a moment that ATI's Crossfire with a pair of X1900 XTXs wouldn't see a big price tag there either. But the 3200+ is not necessarily a "bottle neck" more than any other single cored model. Memory is the key word with too many of the newer games out. If you setup SLI or Crossfire plan on having 2gb of ram available. The larger apps along with the separate vpus on the newer cards will free up cpu time.