i'm considering the same upgrade for my 2011 Scott SUB 10. it's a disc brake bike, so the fork would have to be disc compatible. i think that rigid aluminum forks are just a bad idea in general. i'm rolling with 700x37 conti sport contacts, and the ergon grips i slapped on the flatbar have helped big-time in the comfort department, but i can't help but think that a carbon fork would make the bike roll so much better.

my only hesitation about switching to carbon would be aesthetics. the orange fork currently on the bike matches the frame beautifully, and there's no way i'm gonna get a color match on a carbon fork for the SUB 10's flashy metallic orange paint job, so i'd have to go basic black or something, which would probably be fine, but it wouldn't be as cool.