+1 for the D200. I got mine a few weeks ago. Very capable camera, in spite of its age.
And in reference to the D90, the D200 is 1 generation older, and one step above. It can also meter with the older Nikkor lenses where the D90 won't.
As for lenses, that's really subjective to what you're shooting. If you specialize in shooting architecture and landscapes, I'd definitely pick up something capable of wide-angle (18mm for DX format, 28mm on film,FX) and perhaps even ultra-wide angle. And on the other hand, if you shoot sports, that $1000 ultra-wide isn't going to be incredibly useful (unless you like to get in the middle of the action

).
I'd kinda suggest getting in with a zoom or two, and perhaps a prime (non-zoom) or two. Depends on how much you want to spend. I've heard excellent things about the 18-200mm f3.5-5.6 VR (I'm pretty sure Rainer has one) which covers everything from wide-angle through telephoto, but it also carries a $700 price tag. I picked up the 18-55mm f3.5-5.6 VR for $150 (used) and it is adequate for my general purpose and landscape needs. Decently sharp too.
I personally really like prime lenses -- having larger apertures gives you better performance in low-light and the ability to get shallower depth of field, but can be inconvenient, depending in what conditions you're shooting.
You may want to invest in a few filters. Some people keep UV filters attached permanently to protect the lens (I haven't for a long time). Circular polarizers and neutral density filters can come in handy. I wouldn't bother with any others; the software (or in-camera) solution is usually better than the rest of the filters (B&W filters, color correction, etc.). Polarizers filter light in a
unique way and ND filters allow for
slower shutter speeds. Graduated neutral density filters (
GND) may prove to be better than their software counterparts, but I've not used them myself.
Also, don't forget about what you're going to use for post-processing. I'm trying to learn Lightroom + Photoshop, as I can use both for free through my university. They are nice. I used Gimp before that which worked alright too. Unfortunately, Gimp (nor Linux) deal incredibly well with RAW files, so I do my processing in a Windows virtual machine.
And you may want a flash as well, perhaps some other lighting equipment if you're doing product shots. That's quite out of my experience, so I'm of little help here.