I recently was in the same dilemma, obviously price was the main the issue. I had the opportunity to demo a XT build with a Fox 120 fork. Totally never expecting to fall in love with the 120 set up especially how many reviews came out initially claiming the 100 was the way to go.The bike is dialed and the 120 fork set up is a blast to ride w/o any noticeable penalty. If you can put the extra money together I would def suggest going the Fox route with either the 100 or 120. I would also suggest finding a LBS that carries SC, I'm sure they can work with you on the price especially in this economy.