Wow, lot of great thoughts and suggestions here.
Mirrorless, I would seriously consider the Nex7, 24Mb, incredibly portable and some very good glass available for it, including Zeiss and a nifty 18-200 that perform very well. There are a lot of good shots on Flickr from this camera. I think if you managed to pick one of these up, they are very elusive, you would have no regrets.
You would also have no regrets with a 5D.
From your first post you appear to be camera-less at the moment, if I was in your position, I would look at what dollars I have available and go out and get the best kit that I can and start taking photos. If I didn't have enough to buy a big bag full of primes, I would get something like the 24-105 and a 5D and start snapping. And it more than covers the kit you just sold. Or if portability is your main concern eg. travel and weight is 80% of the decision and therefore the main use of the camera, think about a nex7.
But as another consideration in my experience from event shooting(I don't travel) where crowds are thick and the weather can be hostile a FF camera and a 70-300mm L zoom and a 21 or 24 or 35mm prime get it done for me. This is a very usable high IQ package.
Good luck with the considerations.