I currently use the SteelSound 5Hv2 that was on sale during the Google Checkout pre-Xmas sales @ Buy.com. Got paid to take it, pretty much, after Google Checkout and the Rebate came in.
It's fantastic. It has a retractable mic, so its not always protruding from the headset, the sound quality is pretty good, and it comes with a USB soundcard. However, I just use my onboard soundcard, as I really don't care for the USB soundcard. It has nice spatial virtual 7.1 surround sound, however I felt it just lowered the audio quality inorder to provide that feature. That, and the USB soundcard always distorted if I ALT+TABBED, which I frequently do in games.
The headset itself is great though.