This is what I wear. I wrote a mini-review of it when I got it initially. I love it even more now as the years have gone by.

http://forums.equipped.org/ubbthreads.ph...=true#Post81601

It doesn't meet your battery criteria, but FWIW I'm still on the original battery which is right at two years old now. Looks like the price on it has gone up since I got mine, but it's still under your low end cost.