Getting the Nikon is the first mistake..
(okok, I'll get flamed... its all personal preference).
But seriously, if you look at those professional sports shooters or fashion mags... 7-8 out of 10 uses Canon. :P
Well, I guess depends where you go I guess... anyway, D90 is a nice camera. A friend of mine has it.. even though he gets dissed a lot by the rest of us.. (all canon users).