I'm trying to use what I have now which is a full suspension MTB and jsut swap to a different frame. I'd like to keep it low budget, $100 to $150 to do the whole thing. Adding frame and wheelset is what's hurting me. I have all the 26" wheels and components, may need to stick with 26".

I've got a nice cross bike right now and I can't afford a new $400 frame. If I sold a bike or two maybe I'd have that money.