I would think the PCX5900 would do better than the 6600GT. Am I right in thinking this?
http://www.newegg.com/app/ViewProductDesc.asp?description=14-128-198&depa=1
http://www.newegg.com/app/ViewProductDesc.asp?description=14-130-214&depa=1
http://www.newegg.com/app/ViewProductDesc.asp?description=14-128-198&depa=1
http://www.newegg.com/app/ViewProductDesc.asp?description=14-130-214&depa=1