here's a outlook at all that has happened so far:
Miami
signings
David Martin, TE Green Bay Unrestricted 3 years
Joey Porter, LB Pittsburgh Other* 5 years
Departures Bennie Anderson, OL; Kevin Carter, DE (TB); Joey Harrington, QB; Jeno James, G; Eric Kimble, WR; Damion McIntosh, T (KC); Seth McKinney, OL; Randy McMichael, TE; Sammy Morris, RB (NE); Wes Welker, WR (NE); Dan Wilkinson, DT (DEN)
aquired 2nd (NE), 6th (Den), 7th (NE)
New England
signings
Kyle Brady, TE Jacksonville Unrestricted Undisclosed
Heath Evans, FB New England Unrestricted Undisclosed
Larry Izzo, LB New England Unrestricted Undisclosed
Sammy Morris, RB Miami Unrestricted Undisclosed
Adalius Thomas, LB Baltimore Unrestricted Undisclosed
Wes Welker, WR Miami Trade Undisclosed
Departures Corey Dillon, NE, 2nd and 7th draft choices
Buffalo
signings
Derrick Dockery, G Washington Unrestricted 7 years
Langston Walker, T Oakland Unrestricted Undisclosed
Jason Whittle, OT Minnesota Unrestricted 1 year
Departures Matt Bowen, S; Tutan Reyes, G; Chris Villarrial, G; CB Nate Clements
New York
Thomas Jones, RB Chicago Trade 2nd rounder
Departures B.J. Askew, FB (TB); Kevan Barlow, RB; Derrick Blaylock, RB; Bobby Hamilton, DE; Patrick Ramsey, QB; Trey Teague, T
did I miss anything?