Replying to Nikon D2x vs canon 7d

Alright, this is my friend's setup and money, but i get to use it a lot

He got a d2x from his dad's friend, but is looking at doing some video, obviously the 7d has video and the d2x does not

in your opinions would it be better to sell the nikon setup (will list below) and buy a canon 7d setup, or keep the d2x and buy a t2i or separate video camera

it looks like the 7d is on par, if not better than the d2x for photos, especially in low light with the 7d's much better iso range, so i see no reason not to



His setup right now is D2X, 18-55 kit, 80-400 f4.5-5.6, sb-600 and maybe some stuff i'm forgetting, and how much is this setup worth?



Just looking for some more opinions and stuff to show him
Thanks for any help