A guy who I haven't heard mentioned around here is Bernard James. He's projected to go pretty early in the second round from the mocks I've seen, but if we did some kind of trade for a mid 30s pick, I'd love to get him.
His main downside is that he's 27 years old. He joined the military out of high school and started playing basketball relatively late. He has very little offensive skill, but he's still learning.
His positives are that he's got a great body to be an NBA big, he is a rebounder and a defender, and maybe most importantly, from the interviews I've seen, he seems like a great character guy, a winner and a hard worker.