Originally Posted by sub50hz
You might be surprised what some of the older PhaseOne systems go for. There was a Chicago Craigslist listing for a 645AFD and P20 back for 4500 bucks. If you're shooting portraits, I'm not sure why your emphasis is on high ISO and "getting your foot in the door" with a full-frame body. Buy the 85/1.4 and go to town, maybe put some of the leftover money into hot lights and battery packs or strobes and packs so you can do some light modification when shooting portraits outdoors.
Dang, pretty good price I'll admit. Studio lighting is accounted for but I'm branching into engagement sessions and senior portraits outside and the hobby shots I do more than 50% of the time end with myself using iso 1600 or more @ 2.8. D7000 @ 1600/3200 isn't the cleanest thing in the world, it suffices but wouldn't mind avoiding the color noise in the shadows. The 85 1.4g was a consideration but the 1.8g would do just as good since I wouldn't use the 1.4 wide open, probably stopped down to 1.8 or 2.0 and in that regard the AF is faster on the 1.8g and the focus ring should be the same. A pair of SB-700s may be in order though. As I said though, passing up on D600 and getting the 28-70 F2.8 first, then a fast tele, then a faster wide if my usage warrants it, by then I should be able to step into FX no problem