I don't know what kind to recommend, and I'm still using the one that came stock on my bike, but I know that when we got BF's Easton fork, he was concerned because the dropouts were carbon, not some sort of metal. Though in a year, that hasn't been a problem, and he's a Clydesdale. I _do_ know that when I was shopping for a fork for him for Christmas, Easton was easy to get ahold of and very helpful in making the decision.

The dimensions, 650/700 and 1"/ 1 1/8" have to match your wheelset and headtube sizes. You can usually figure out the headtube size by looking at the frame manufacturer's site. I think 1 1/8" is the common one.

Nanci