I am a big fan of the 3808 but heck, if I didn't have a budget, I would of went with the 4308. I was not impressed with my 3800 but the 3900 seems to do everything I was looking for, it just wasn't out yet.
All of these are very good AVRs, just pick the one that has the features you need. They should all power the DTs about the same.
Oh....and it's nice to have another DFW guy here, I thought I was the only one.