I currently have a Nikon D90. I used to own a Canon Rebel xs, so the D90 was a good upgrade. Now I feel like I want a better camera. Also, should I consider going back to a Canon? Because lately I've been think I want a Canon. I was looking at the 5D Mark II. What is a good upgrade from a Nikon D90 for both Nikon & Canon?
>>> What is an upgrade from Nikon D90?