as i've been lusting over that camera, I've seen much of the DxO and whatnot reports on the 5D.... although its nice to hear that the AF is superior. the croppability, IQ and noise are really what i look forward to the most. I've used the live view to get manual focusing down, and i found that to do a huge asset, makes shooting low DOF much easier.
as for LR, i need to upgrade my hardware before I will have enough patience for the local editing tools. I do however use photoshop on occasion for local edits, but find that with lightroom doing 85% of what i want to do, it is a real pain to transfer between programs for many different shots. I did buy the LL camera to print, and the LR 2.0 guide vids, very informative indeed.