I'm sure we've done this before as aussieboy said, but I wasn't part of it, so I'll go ahead and add my two cents.
20 is a lot, but I'll try my best

I'm sure some will disagree, but this is based on my opinions on the players.
R. Moss
Holt
Harrison
Owens
C. Johnson
Ward
Boldin
Mason
Horn
S. Moss
S. Smith
Moulds
Coles
D. Jackson
A. Johnson
P. Price
Chambers
Burress
K. Robinson
J. Walker
Just outside - J. Smith, Rogers, McCardell, Bruce, Toomer
I like A. Johnson to impress this year with a healthy David Carr and Javon Walker to hook up with Favre more this year. I really didn't want Burress and K-Rob in there, but their ability makes them top 20 material.
Edit - Found the Cheat Sheet from KingGhidra!
http://www.fantasyfootballcafe.com/foru ... hp?t=59907