Yeah, not a lot that can help us at all. I mean, if we really want to we could sign Eddie House for up to $1.8 million, and include him in a sign-and-trade. We still have the Bird rights to Roshown McLeod and Kandi, which we could use as expiring contracts for salary filler (but we can't give more than a 20% raise over their last salary). But really, the pickings are slim, especially due to the Base Year Compensation rule (i.e., no Tony in a sign-and-trade).
I've seen fans talk about trading Ray Allen, to set us up for the future. I personally hate that idea. We need to maximize our potential now.