What about Bob?

Gentlemen, start your calculators.

The NFL's free agency period begins on Friday, and the money will be huge, as usual. This year, it might be bigger than ever, because more teams are flush with salary cap space than ever before, thanks to the extension of the collective bargaining agreement last year.

It's a relatively weak field of free agents, so the class players figure to get a boatload of money. And that may not sit well with some guys whose contracts don't expire. The financial disparity will widen significantly this year, and the spillover into locker room chemistry will be a major factor during the season.

One general manager told me he has genuine worries about what one player will be thinking when he realizes the guy lining up next to him is making twice as much dough - or more - when there's no way he's twice as good a player.

Here's a look at my top free agents:

Nate Clements, CB, Bills.
Dewayne White, DE, Buccaneers.
Adalius Thomas, LB, Ravens.
Shaun O'Hara, C, Giants.
Patrick Kerney, DE, Falcons.
Michael Turner, RB, Chargers (restricted).
Matt Schaub, QB, Falcons (restricted)
Jeff Garcia, QB, Eagles.
Jay Feely, K, Giants.
Ahman Green, RB, Packers.
Cato June, LB, Colts