Creative HS-1200 Sound wise they are surprisingly good and the mic is excellent.
Range is very poor so don't expect to be walking around the house with these on but they are fine in front of the PC. Other minor downside is they can only be charged when the PC is on, not a show-stopper but a niggle nonetheless. I thought they were not bad and they also do not require a sound card to operate (uses cpu cycles instead, but nothing a decent C2D/C2Q cannot handle).
OCUK also stock the
Logitech ClearChat Wireless USB headset but I have no personal experience with these.