Ah yes, there's always people picking either Canon or Nikon.
I had a friend who bought a Canon then sold it and switched to Nikon.
Then switched back to Canon. lol
Point is, both are good. I'm not sure what your budget is but here's a few photos I took with my Canon 5D.

Here's a Cuttlefish from the Moody Gardens Aquarium in Galveston, TX


Actually, all these were taken in a trip to Galveston, TX








I really have nothing but good come out of this camera.
Although I do have a small "professional" point and shoot Nikon P80 which rocks too.
Buuuuuuuuuuut Canon has my heart.