A buddy of mine recently built up a pretty dang nice Sinister Ridge. I helped him build up a trailbike worthy of some thrashing around the local xc trails. Seeing that he was used to riding his big bike, he didn't want to spare any strength on his "other" bike. Pretty much all of the parts could have been used on a lightweight DH race bike (with the exception of the frame/fork and tires). Here's a few photos: