We'll have about $25 million in space, assuming we don't amnesty Pierce.
The unrestricted free agent class is pretty weak. You can find the full list here:
http://www.hoopsworld.com/ranking-the-2012-nba-free-agentsAfter Deron Williams, there just aren't a lot of unrestricted guys to build around. Kris Humphries, Steve Nash, Chris Kaman, Antwan Jamison, Nick Young, Spencer Hawes, Lou Williams if he opts out, Gerald Wallace if he opts out. Not a lot you want to spend big money on.
The restricted class is a bit deeper: Roy Hibbert, Brook Lopez, Javale McGee, Eric Gordon, O.J. Mayo, Nic Batum, Wilson Chandler, Ryan Anderson, Michael Beasley, Chase Budinger.