Seeing as how they seem to come on a daily basis, here's the one I heard yesterday:
Blazers trade Z-bo and Jack to the Hawks for Marvin Williams, a cap filler, and the #3 pick.
This might be one of the more interesting rumors I've heard, and it would make some sense. Jack played at G-Tech, the Hawks would certainly be better in a hurry, and the Blazers get a high upside forward and that #3 pick that they could do a number of things with. Speculation is that Conley Jr.'s dad (and the "agent" for both Oden and Conley) is trying to get Conley to Portland to continue his playing relationship with Oden. Not sure how I feel about that, but I wouldn't mind any situation that got them Corey Brewer along with Oden.