I have no insights re Nikon model versus Canon model but I can say the Canon 7D is one sweet camera.
I'm a full frame guy going from a 5D to 5D2 and will go to the 5D3 when it's available.
I've wanted a crop body for some time for action pics and maybe even some long range wildlife photos. I've been looking around thinking I might save some money and buy a good used 50D or 60D should one come along, etc. but never pulled the trigger.
I finally just broke down and bought a 7D (rationalizing to myself that the extra expense is justified because a) I won't be replacing it has I do the 5D; b) the $200 rebate is really money, and c) the battery is compatible w/5D
) and OH MOMMA is this a sweet camera. I completely love it. I bought mine at B&H for $1499 with the instant rebate which is only $300USD more than the Nikon D7000 and 7D appears to be much more feature packed. Admittedly, I don't know from Nikon,....
I can promise you that you will love a 7D the moment you pick it up, and with a little reading of the manual and some practice (I've been taking pics of my dog catching frisbees) you will soon master it's operation.
I was not prepared for how much I love this camera.
PS: Here is a handy comparison between the D7000 and the 7D: http://al4h.sl.pt