Omri Casspi and Donte Greene are available.
Josh Smith is available.
Al Jefferson and Paul Millsap can be had.
Michael Beasley, Anthony Randolph are more easily available (despite what Khan says).
Other guys
Robin Lopez (PHX)
Andris Biedrins (GSW)
Monta Ellis (GSW)
Eric Maynor (OKC)
Rip Hamilton (DET)
Baron Davis (CLE)