Thanks Mike!
After i got my 50D i told myself that my next camera would be FF to get the most out of my L lenses... but i completely see your point - the 7D would definitely be the better option if i could only take 1 body with me on the trip. However i just thought that by already owning the 50D it would make the 5D the better companion.
I guess i could i get both the 7D & 5D [] but then i might as well go for the 1D and the divorce!