i'm one of those bt nuts, so
Amazon.com: Samsung HM1700 Bluetooth Headset with Noise reduction and Echo cancellation, supports Music streaming (Gray): Cell Phones Accessoriesi tried and they were "ok" when i needed a bt headset, but talk quality was crap, long battery tho, not as comfortable (i had to use the ear wrap around and the gel's weren't as good)
Amazon.com: Plantronics M155 MARQUE - Bluetooth Headset - Frustration Free Packaging - Black: Cell Phones Accessories
this is my "goto", the gels fit nicely, i didn't have to use the wrap around, and the gels stay on the bt when you bring them in and out from your pocket (lesser gels come off when you transfer from jeans to ear often), battery time isn't super great, i get max 2.1 hours of podcasts, but standby is like forever!, talk quality, is upper 90% (annoying thing is volume cycles from one button, no separate, +/- but buttons are scarce anyway for most bt devices, so do judge a bt headset by physical buttons)
Amazon.com: Jawbone ICON HD - Bluetooth Headset - Black - Retail Packaging: Cell Phones Accessoriesi've had at least 2 jawbones, with noise assassin 2.5 tech, and the other ppl on the line find it not as great. there is a little nub that touches your cheek/jaw ever so slightly. battery life is great, didn't need the wrap around and i believe it has both iphone/droid software so you can see on your phone current battery life, which is cool (built in for iphone, have to d/l app for droid i believe)
i have the jabra extreme in my car, currently it works great as a speakerphone vs the car bt, oddly enough, but it kinda sucks to have in-ear, amazon doesn't seem to sell them no more.
i'm the local "tech guy" in my gym so i've recommended these
Amazon.com: ARCTIC P311 Bluetooth Stereo Headphones, Integrated Microphone, 20-Hr Playback - Black: Electronics
to most ppl, i actually workout with a pair of regular headphones (i can't stand on the ear, and have over the ear), but ppl wanted good bt wireless headphones and i recommended these. So far 4 ppl have them and love them. they work great, hold onto the head for long runs, and have big buttons to change music. They even use it to talk when they get calls! and they say they almost never have to charge them and leave them in the gym bag.