Well, since you mentioned "stereo" I'm assuming you mean headset; I have two- the Jabra BT620s (which I usewhen at home) and the Kyocera GSH-300, which are pretty rugged and what I use when away (and ironically enough, usually paired with my Jabra A125 iPod BT audio adaptor that came with my Jabra 620s).

Both of those support A2DP (Stereo BT Audio) with AVCRP(?) that lets you change tracks, and will also make and receive phone calls (in "stereo", even).

The Plantronics Voyager 855 I mentioned do this, in a very slick package.

I reviewed them back in December here

The 2 best parts (imho) is the ability to switch them to a mono headset, and the sliding boom mic, which makes call quality much better. Oh, and the earbuds themselves are noise isolating.

Jawbone it's ok, don't really get all the fuss about it. Also have cheapo motorola, is as good as the Jawbone in my opinion.

After many hours of testing the jawbone, I love it! tested it with the windows down and worked just fine. Once I got a complaint that I sounded like I was talking in a bowl, but the person heard me good and I was in a very noisy place.

I'm giving the Blueant Z9 a whirl. Here's my impressions so far.

The pluses:
- It's plenty loud. The loudest headset I've used to date
- It cancels noise well. I have frequently used this while driving my vintage BMW with a modified exhaust. No complaints on the other end. This is impressive as were I to use the handset directly with the engine running, callers frequently complain about background noise.

The minuses:
- It always feels as though it's about to fall out of my ear. It never actually has fallen out, but the feeling that it's about to leave my head is distracting.
- The pocket clip is a joke. It looks very dapper when you wear it clipped to your shirt pocket. The first day I tried this, it fell off 3 times causing me to have to go searching for it. That was it for me and the pocket clip.

So, for this BT headset user, it's OK, but still not my Holy Grail (fits my ear well, loud, good noise canceling, and easy to carry when not in use).