Happy Birthday Mike!!!!!!! ( bit early I know)
Yep emoticon city...
Anyhwho.....From what I can read on the various posts on Canon vs. Nikon is that Canon has a better GUI and therefore easier to use. I have had no probs navigating the Nikon I own and I'm happy with the results that I get.
Then again I have not had the opportunity to use a Canon DSLR (I own a point and shoot Ixus 65).
So far as I know, it all comes down to the sensor.
Get an adapter, whack it on your scope of preference, and play!!!!!!
I'm sure with your knowledge you will get some awesome shots!!!!!
Bartman