I see, it seems that your main concern is burst shooting speed. The
slowness for 1Ds III and 5D2 is probably due to the doubled pixels. It
really narrows down the list to 40D and 1D Mk II, I'd say just pick one
and go with it. Perhaps you just want to wait til a good deal of 1D Mk
II to show up? Then you yourself have the answer, you do prefer 1D Mk
II and all you can do is wait for a decent one to show up.


Otherwise,
get a new 40D right now and start shooting. I am sure you won't regret
since you want to have both APS and FF bodies in the future.


Hence, you really want to worry about saving for the lens more than the body now.