Nice deal on a Nvidia 8800GT for $235:
Dell Home offers the XFX GeForce 8800 GT 512MB PCI Express Video Card, model no. PVT88PYDF4, for $234.68. (Search for “A1350995” to find it.)
I’m tempted! But, I think I’ll wait as the 8800GT isn’t supported under Linux yet.
Update: Looks like the driver was released on Nov 16th 2007: