I have the Jabra S620 that I picked up in... late 2007 I believe and they work perfectly. They have amazing clarity.. and I don't know if tigerdirect priced them improperly at the time.. but I purchased them for 29.95 Canadian with $9.95 to ship them overnight.
They did and still do retail everywhere else for $129, but you can often find them near the 29.95 price since then. When I work out, I use those, because I can control the tracks, volume, pickup calls, deny them, do whatever I need without having to touch my phone, so it stays safe in the holster.
That.. and I can talk 14 hours straight on them, 16 hours of listening to music. The battery life is retarded on these things, and as I talk, I have them sitting on my desk at work right now for my ride home. I used to have a Nokia 6300, which I replaced with an HTC P4000, and last night upgraded to a Touch Pro. The sound is excellent with these things.
I hope that helps out a little!