My draft guesses-

Pick #31:  Jonathan Hankins-DT/NT, Ohio State
Pick #34:  Eric Reid-S, LSU
Pick #61:  (Trade Up)  Jesse Williams-DT/DE, Alabama

Obviously I see the 49er using their premium picks on the defensive side of the ball.  Hankins and Williams bolster the defensive line depth, while Reid looks to help fill the void left by the free agency loss of Dashon Goldson.  It's going to be interesting, and the draft is now only one month away.