I'd like to get Grant Hill. I suppose it's not that unreasonable either, given his age, that they'd trade him. I'd definitely trade Walker + Giddens for him, and wouldn't mind trading TA for him, either.
On the other hand, Grant's salary isn't exactly huge and I think he's an expiring anyway, unless they signed a guy who's 37 to a multi-year contract. So unless the Suns really think they can get something out of Billy, Giddens, and TA that we haven't been able to these last couple of years, I don't know why they'd do it.