I have an old (1997, pre-Trek I believe) Fisher Tassajara, which I bought NOS in 2005. It's hard tail, rigid forks and a mix of Acera through XT (or, maybe XTR, haven't looked in a while) components. The build quality was great and it rode nice for the $200 they were asking. At the time my bicycle knowledge was comprised of "they have two wheels, pedals and a chain."

During the first eleven months, I rode it maybe half a dozen times. In the last two months, however, I've put somewhere around 250 miles on it. That included one trip to City Forest in the beginning of June. After that one trip 'off road,' I put a set of Freddy Fenders, a rack and an Epic trunk, road tires (well, commuter tires) and converted it to strictly commuter duty.

I'd never have believed that anyone could tell the difference between frame materials, but I swear the CroMo frame on the Tassajara is more 'plush' than the 7003/carbon frame on my road bike. It's a great ride, takes abuse (riding in a downpour is fun!) and gets lots of looks. You can see it here. I'm not sure how the newer, Trek-era Fishers compare, but I've read some good reviews of their full suspension mtbs.