Well, if you heard that XT is more durable than XTR, and weight savings don't impress you, why did you pay double for XTR? There isn't much reason to get XTR aside from the weight savings. Also, go to store and try to see if some of your issues are covered by warranty.
Also, Fox Shox DVD doesn't play on Mac because their market research shows that Mac users are pansies who don't ride mountain bikes