As far as a trade that gets us a SG and a PF, the most realistic trade idea out there right now for a good starting SG that doesn't ruin our 2010 capspace would be Wally + a 1st for Miller and Cardinal. While Minnesota likes Miller's veteran presence, his age doesn't really fit with their core, and by unloading him and Cardinal's awful contract, they can offer Bynum a max deal this coming offseason. Also, both expire next year, so we will still have enough room in 2010 to re-sign LeBron and offer a max deal to someone like Bosh.
A realistic trade for a good PF is harder to come by. The most available starting-caliber PF's appear to be K-Mart, Al Harrington, Zach Randolph, and Chris Wilcox.
Wilcox is an expiring, and I don't think we're willing to part with good young talent, which is what OKC would want for him. If we're lucky, they'd go for a Snow + our 09 second.
K-Mart is owed $16,545,454 in 2011, so he'd ruin our 2010 capspace. He's just not worth it, especially with his injury history and his knees.
Zach Randolph... well, need I say anything about him? We just don't want him here... nobody in the NBA does.
Al Harrington doesn't have the size to play PF for us, and is perimeter-oriented and shoots a low percentage. On top of that, Golden State likes him. I just can't see us bringing him in.
Unfortunately, I don't think we'll be able to solve our PF dilemma this year. I think we're just going to have to stick it out with Ben/JJ/Darnell/Z/AV/Wright as our bigs. Next year, however, Ben's expiring will be in VERY high demand to a team looking to clear cap room for 2010. However, would we make a trade for a PF then? Or, would we rather wait, and see if we can lure Bosh here with a max deal?