Rob G says street is $4999.
However, he was NOT one of the beta testers, which will call the AF issue into question. ; Especially since he was the leader in proving the problem with the Mark III. ; If Canon didn't want him to test it, it may mean something. ; (or it may not)
Since it's a brand new AF, Paul, I would wait until it's been out in the field for a while.
Besides, last time, every store only got 2 bodies every 2 weeks, so a waiting list will probably be developed.