If you're going to buy the 70-200, don't buy the 17-55. I say that because it's a DX lens and once you convince yourself that you can spend >$2,000.00 on a lens, a >$2,000.00 FX body isn't far behind!
In all seriousness, I'd be looking into the 16-85 VR and the 70-200 VR (first or second generation). Good luck using the 70-200 while dangling from a rock, it's a huge sucker.
I've got the 70-200 VR1 and the 24-70 f/2.8 Nikkors, that's a fantastic combo. But on a D90, I'd be worried that you'd want something wider than 24mm so I'd stick with the 16-85 VR.
SLC
Good point