Yesterday the Sabres signed goalie Patrick Lalime to a 2 year 1 million per deal. Lalime played for the Blackhawks last year, but is mostly known for being the starting goalie for the Senators before the lockout.
As for defesemen, the Sabres only chance is Orpik. With Striet signing with the Islanders, Rozival back to the Rangers, and and Commodore to Columbus, he's the only good defenseman left. Now, I can see Darcy making a trade. There are rumors with Boyle, but who would they give up. Or maybe they can get Bouwmeester or Biaska.