The point has come to add a a reliable second weapon to the arsenal. The problem is I'm at a loss which one to choose so I'm seeking some opinions.
I currently use a D700 with a D40 as a back up. I borrow a D90 for important gigs like weddings. The borrowing isn't working out to be a convenient option and the D40 won't cut it.
In terms of budget I can go up to a D800. My biggest concern with the D800 is the megapixels. In reality I don't NEED them (although it's not a major turn off to have them) and have a concern with editing on the computer. File storage isn't my biggest concern it's just the muscle in my iMac 7.1 to handle the editing in Lightroom. So I'd love to hear opinions of people's experience with how their computer has performed. Also I'd love to hear how people like this in a "people" environment (ie: Weddings, engagement shoots, model shoots - both studio and on location).
My other options I'm throwing around is to buy a used D700 or D3(s). My huge concern there is investing another amount into "old" technology and then wanting to upgrade it in a year or two. Also I've never bought used before so not sure where to start.
D600 is out as I've gotten used to a semi-pro body and can't turn away from it. Even using the D90 feels very weird.
Now in the grand vision I would to go for the D4, but unfortunately funds don't allow for it currently.
Thoughts, opinions, advice? Many thanks!