Below is my list of QB's. I won't give me reason behind all of them but I will write about a few sleepers below.
1 Aaron Rodgers
2 Drew Brees
3 Peyton Manning
4 Tom Brady
5 Tony Romo
6 Matt Schaub
7 Phillip Rivers
8 Kevin Kolb
9 Brett Favre
10 Jay Cutler
11 Eli Manning
12 Matt Ryan
13 Donovan McNabb
14 Joe Flacco
15 Carson Palmer
16 Chad Henne
17 Ben Roethelisberger (suspended frist 4 games, Leftwich or Dixon will be starting....they are good late round pick ups if you get Big Ben)
18 David Gerrard
19 Mark Sanchez
20 Matthew Stafford
21 Matt Leinart
22 Alex Smith
23 Matt Cassell
24 Vince Young
As you get down around QB's 10 -15, they make would make a great 2 QB combo although many have a bye in week 8 (Kolb, Cutler, E. Manning, Flacco, Ryan) but pair them with (Palmer, McNabb, Henne, Big Ben). These QB's should not go until round 6 but should pay off big time for you.
My late round sleeper is Matt Stafford. He has a good crew of receivers and would be great to pair with a top QB (no Schaub, P. Manning)