Mike Muscala is at the top of my list. Very skilled 6'11" player. He has good range on his jumper out to just inside the 3 pt line. Can score with either hand in the post. Good defender and good shotblocker. Someone mentioned Colton Iverson showing better. Iverson is very skilled in the post, but has zero game away from the basket. He may be the least athletic big man in the draft. He's a tough kid, but Muscala is twice the player Iverson is. Apples and oranges really because Iverson can only play center, and Muscala can play PF, and possibly center, when he adds some strength.
Other than Muscala, there are several players I like in the second round. As mentioned by Vlade, Wolters is a personal favorite. 6'4" PG with high BBIQ. Great shooter, and very very tough. Not as athletic as some of the others, but he makes up for it with very good ballhandling and anticipation. He has stated that he really fancies himself as a pass first PG, but South Dakota St. needed him to score a lot. He doesn't see himself as a scorer at the next level.
I think Grant Jerret has long range potential. He's a guy that might spend the entire year in the D-League, but 6'10" guys with potential are worth betting on. If Jeff Withey slides, which I don't think will happen, then you grab him and get home as quickly as possible. Much better player than a lot of people realize. Great defender at the basket, and defended the pick and roll very well this year. I allso like James Ennis, and considering we have a hole at SF, he would be a nice player to invest in.
Lastly, I like Dewayne Dedmon. Dedmon is a very raw PF/Center. But he's a 6'11" very athletic player with very good hops. Low BBIQ at the moment, and like Adams, he came to the game late, so he's behind the curve. He's very raw offensively, and at times seems to get lost out there. So he would be a project, and considering he's already 24 years old, he would be a gamble. All depends on how fast he can get up to speed.