I have the Hauppauge WinTV HVR900 (plus remote control) USB DVB-T receiver for sale, since I am now using the HDHomeRun.
It's a very good receiver, and it works well with Windows Vista - even better on Windows 7. It's $149 at DSE (down from $179), so I am happy let it go to a good home for $100.
Any interested people can send me a PM here on Geekzone.