What do you think of getting a 6D(new) instead of another 5DIII or 5DII(used).
6d - That's a good idea too....great solution. I'm sure some people shoot weddings with a 7d, but I would think if you were serious about being a great wedding photographer, then two full frame bodies is the way to go.
I had a similar dilema a year ago about my sports photography, so I bought a 1dx and couldn't be happier...my photos are better because of the capabilities of the 1dx.
You will have more "keepers" and better IQ by replacing the 7d with a 6d when shooting indoor photography like a wedding....no question about it.