Not wanted to make your decision harder but before choosing give some thought to what lens you'll be using mostly. Neither the Canon or Nikon have inbody stabalization so you'll might have to buy a lens with it, which can cost a lot. Sony, Pentax and Samsung have stabalization built into the camera body which makes their lenses far cheaper.
Of the two I'd go for the Nikon, and I say that as a Canon user. Nikon have a slight edge over Canon at the moment. But as others have said, pop down to your local camera shop and hold them, you might find the Canon grip a bit too small.