Can't believe Ged got a mention on this thread, was a cracking player for us.
Matt Seers for me, I expected massive things from him but wasn't to be for whatever reason, think it may have been something to do with getting a broken hand on Ryan Hudson's chin.
Just remembered another, Mark Colbeck, cracking LF at amateur level and then ended up in the clink for something quite serious but can't quite remember what.