Trails?

Do you want a trainer to use with your mountain bike? If so, be aware that trainers eat tires, so you will need to put a slick on the rear, otherwise it will eat all your nobbies.

I have a cycl-ops fluid trainer that I like. It's very quiet and sturdy. I use it 0-3 times a week, $280 is a lot for something that's so lightly used, but I think it's worth not having to stress if the weather is bad and I HAVE to ride. Plus it's not something that will wear out, I expect it to outlast at least 2 racing bikes.