You can get MSI 8800Ultra for $565 after rebate
Newegg.com - MSI NX8800Ultra-T2D768E-HD-OC GeForce 8800Ultra 768MB 384-bit GDDR3 PCI Express x16 HDCP Ready SLI Supported Video Card - Retail
It has much higher clock speed than the other 8800Ultra. I think it is the fastest video card on newegg
Newegg.com - MSI NX8800Ultra-T2D768E-HD-OC GeForce 8800Ultra 768MB 384-bit GDDR3 PCI Express x16 HDCP Ready SLI Supported Video Card - Retail
It has much higher clock speed than the other 8800Ultra. I think it is the fastest video card on newegg