Canon EOS 5d Mark II
It is a heavy piece of kit though and carrying it around for any length of time is very good exercise. The only drawback I have found is the lack of pop-up flash. This isn't that much of an issue under mosts circumstances as I have a flash unit and often don't use flash at all (for landscapes etc). However, it is the way of thinds that when I want to use the flash I have left it in my other bag, or the batteries are dead. Hey ho.
The 21 MP image gives a lot of scope for cropping, so I can usually frame shots as I want with it.
Movie mode is good, but something I don't use to its fullest potential I think.
I have a battery grip fitted, which adds to the weight and size but I find that it is a tremendous help when hand holding shots, especially portrait format.