Thanks, David - I found it very strange that Canon would have been silly enough not to offer that option on its flagship model. Almost all other pro level SLR's I know have MLU. This might be a case of engineers believing a little too much in their own abilities - kind of like the 1950's fighter jets that had no cannons, because it was deemed obsolete... until they got into a shooting war and everyone was grafting cannons onto them with everything including duct tape! And the new EOS pro lines all have MLU as far as I know. Just like all new fighters have on board cannon...
Oh, what to do, what to do...