Some of the names in the 35 lowest BB rates: AJones, Alexei, Delmon, Reyes, Vlad, CLee, Starlin, Prado, Pierre, Ichiro, Rios, Lind, Cargo, Beltre and Pence. Some of these guys still have decent OBP's but they had great BA's so they have a lower value. I only looked at 2010 so it's possible that a guy like Lind could rebound to a higher walk rate.
Some of the names (other than the obvious 1st rd'ers) in the top 35: Barton, Pena, Gardner, Bautista, Papi, McCann, Abreu, Zobrist, Choo, Werth, Huff, Ike Davis, Rasmus, KJohnson, Scott, Konerko, JUpton, Chris Young and Fowler.
In my OBP draft yesterday I targeted dunn/Uggla at the 2nd/3rd turn (obviously taking Albert first). But Dunn and Youk/Zim were taken right before me. Luckily Holliday unexplainedly fell to that spot with Uggla and I was thrilled to get them.