Now that my 5850 is done for. I've been looking into 6900s/7900s and now some Nvidia cards. They seem to be strong for SETI and other projects. SETI is showing the 660ti as the top card right now. I've always done milkyway and SIMAP.. SIMAP is CPU only.. Einstein looks like it does Nvidia also. Anyone have any preferences on Nvidia or ATI cards?