What video hardware are you using for Solidworks?
Solidworks still hasn't arrived, I have a DT dept that's supposed to be teaching it this September who have no idea how they're going to be using it and so I have no real idea what videocards to spec (Quadro/FireGL/Decent OpenGL card - 8800?)
I've found the testing results from solidworks: Hardware & Graphics Cards
and I've also found real-world testing info: Anna's SolidMuse: SolidWorks Sheet Metal Benchmark File, which links to a google spreadsheet with real-world benchmarks Google Docs - solidworks benchmark, punch holder
and this here: SPECapc for SolidWorks 2007™
But I don't have a copy of Solidworks, so I turn the edugeeks. What are you using? What are you doing with it? How well does it handle it?