Going by nbadraft.net, it would be tough to pass up on Drue Holiday that late...although Collison is also a very good option.
The guy who I really like however is Nick Calathes. He is a true PG, who can really stroke the ball, and has the size to guard SG's. I think if you put him next to Eddie House, and in the C's defensive system (which will hide some of his lack of lateral quickness), he could be a very good player. He is a smart player, who should pick up on things quickly.
I don't think we need another young wing (unless someone like Buddinger falls), and the big men you can get there are not very good (it looks like the good undersized big men will go higher in this weak draft), but the real value here is in the PG's...so perhaps the C's will look to take another shot a PG, if they cut ties with Pruitt.