I think building in carbon is ambitious unless you have worked with a similar material such as fiberglass. I think you could make a MTB frame strong enough, but the cost might be offset by the weight. One of the strongest arguments against carbon fiber for a MTB frame is impact loading, and the potentially explosive nature of carbon fiber material failures. Doesn't mean you can't do it though.

You could read up on Fiberglass. There might be more literature, I'm not sure. The basic techniques are the same. A quick search of the internet and I found this article on one man's experiment with a CF frame build:

http://www.sheldonbrown.com/rinard/carbon_fiber.htm

There are a couple interesting videos if you look up "how a carbon fiber bike is made" in google. I did a composite structures course once where we studied woven composite structures like CF and fiberglass. Had a fancy spread sheet that you could use to design layering. Wish I still had it, I'd send it your way.

I found this:

http://theprojectjunkie.com/bicycles...e-project.html

He also put together a series of videos documenting his build. He claims he only spent $160! Really good starting point.