My advice:
Be the last one in your league to take a starting catcher. Mauer, Martinez, McCann are all going WAAAAAY too early for the actual production they'll give you. And guys like Ramon Hernandez, Posada, Piazza, while very good, are going in the same areas that a lot of quality SP and OF are going...give me an OF who's a lock for 25 HR and 95 RBI with a .300 BA over a "better than average" catcher. Wait til everyone has one, then take Paulino, Estrada, Pierzynski, etc.
Some sleepers:
People still aren't on board with Michael Cuddyer yet. He's legit.
Ian Kinsler will become Michael Young.
Don't laugh, but Kaz Matsui was awesome in Coors last year.
Wes Helms is a solid hitter in a small ballpark and a very good lineup.
Eschew guys like Corey Patterson and Chone Figgins early on...then take Chris Duffy late. 40+ steals.
Jason Kubel is healthy and has a regular DH gig to himself...could be looking at Morneau-lite type stats.
Dustin Hermanson - have read in a few places that the Reds want him to close. Certainly better than Stanton/Weathers.
King Felix, Harden, Chris Young, Dice-K, Tim Hudson, Anthony Reyes, will all significantly outperform their ADP. Randy Johnson will be outstanding out of the Bronx and with a fixed back. I don't think people realize just how much pain he pitched through the past 2 seasons.
Also agreed on Tulowitzki, J.Hamilton, R.Hill, Bonser, and Loewen.