My recomendation is
eVGA FX5900Ultra
They have fantastic Tech Support and also have their own Forum for help from fellow members.
The
eVGA FX5900Ultra comes standard with a Performance Bios that sets the clock speeds to 500Mhz Core and 900Mhz effective memory.
The
eVGA FX5900Ultra also performs better than the FX5950Ultra in most tests.
http://www.firingsquad.com/hardware/...view/page3.asp
The other reason I recommend eVGA is that if you buy from them you can take advantage of their new "StepUp Program". Within 90 Days you can send your card back and only pay the difference to upgrade to a better card.
www.evga.com