I got a D90 a couple of years back and it suits me in a lot of ways, but I could really do with AI / AI-S compatibility, which I should have thought of when I bought it. I just got a nice Vivitar Series 1 100-500 which really does need metering to avoid a lot of wasted shots, and my 8mm Yongnuo is also AI-S. I was thinking about getting both lenses chipped, but I can live without focus confirm, I'm reasonably good at doing it by eye, so I decided that a saner option would probably be a body with support for older lenses.
What I need, basically, is the same resolution as D90 (I really have no real use for anything higher), liveview (useful for photomicro etc.), and support for AI/AI-s, early motor-in-body AF, and AF-s.
What I don't need is higher resolution or video capability.
It looks like something like a D300 would suit my needs - any other suggestions?