Hi,, just my 2 Cents worth here,, I was in the same situation, ,watching for the 5d MIII, I now have a 450D.
I would love to make the FF jump, but not at that price level. I don't get paid to shoot,, (yet) lol
I went ahead and bought the 7D just two weeks ago, and I have NO buyers remorse at all. I love the 7D so far,
I still have a learning curve with it, I shoot with a 24-105 L and a 100-400 L,, and the camera works GREAT.
I shoot outdoors, mostly,, Air shows, landscapes, wildlife.