the plantronics DSP-500 headset (
http://www.plantronics.com/north_ame...ull/prod440044) i'm using now is pretty sweet too...right mim? lol
my only gripe is the hassle the plantronics software can be when you're wanting to switch between speakers or headset. other than that, great sound (when you EQ them correctly) and the mic has never failed me. they're a bit on the large side though when it comes to size...hehe. but, i suppose all the over-ear designs probably are at the same time.