I have a dream to someday (within the next few years) tour the US coast to coast. I'd like to know what bikes are out there that would be a good, yet within a tight budget, to use. Litespeed, Trek,....? I figure I'll pick out a bike and start saving for it now and hopefully shortly before I'm ready to go I'll find one at a decent price. Right now I use a new Trek 3900 MTB that I installed Kevlar street tires, rear rack and Brooks B17 Champion Special saddle. I've thought of using it for the tour but feel like a normal touring bike would be better. Any thoughts on that? Thanks for any help or advice given.