Yes, I know many of these FA's will be re-signed but it doesn't hurt to look at potentionals.

QB:

As Jimmy Clausen has ensured a return to ND and  LOL-line being the biggest upgrade needed via draft, free agency might be the place to upgrade for QB.

Jason Campbell, Washington

Chad Pennington, Miami

Tarvaris Jackson, Minnesota

RB:

I know that this isn't a great need but looking through the 49er's roster, we REALLY need a 3rd/2nd-stringer to complement the oft-injured Gore.

Jerious Norwood, Atlanta

Ricky Williams, Miami

LenDale White, Tennessee 

WR:

We need a 2nd-WR next year seeing as Bruce isn't coming back and Morgan isn't getting it done.

NOTE: I AM NOT PUTTING T.O. HERE.

Antonio Bryant, Tampa Bay

Vincent Jackson, San Diego

Domenik Hixon, New York Giants

Miles Austin, Dallas

LOL-line:

Well, I believe the major upgrade will come via draft but the prospects:

Marcus McNeill, San Diego

Jahri Evans, New Orleans

Daryn Colledge, Green Bay

Logan Mankins, New England

DL/DE:

With Manny Lawson emerging with the defense as a potential star, the pass rush need might not be as crucial. Nevertheless, pass rushing NEVER goes amiss with the Niners.

Aubrayo Franklin, (Priority re-signing) Niners

Elvis Dumervil, Denver

Ryan Pickett, Green Bay

ILB/OLB:

Who do we line up next to P-Willy after Takeo leaves? Ulbrich might retire after a series of concussions which leaves us with Diyral Briggs and Scott McKillop.

Shawne Merriman, San Diego

DeMarcus Ware, Dallas : It's quite likely that he's unavailable but who knows? (He might get tagged)

Thomas Davis, Carolina

CB/S:

Improvements to the secondary are on-going.

O.J. Atogwe, St. Louis

Brodney Pool, Cleveland

Stanford Routt, Oakland

Eric Berry/Taylor Mays? VIA DRAFT