If you really MUST stick to your $1400 price budget, the D90 and 80-200/2.8D Nikkor is your best bet. Well, really your only bet. I had the pair for a while, and it worked..well..well. The D90 isn't the best at high-ISO, but neither is my D90, and neither will be my D800. All are better than your D80, though. And certainly better than any blasphemy about a D1h, etc.
But, I mean, there was nothing wrong with your Sigma 70-200, at all. I know of a bunch of people who use that for sports. Both night and day. You probably would have been better off keeping that, and upgrading your body to a higher-end, better-ISO body since the lens will do everything the 70-200 Nikkor will do (just not as well sometimes).
Mark