What DSLR and glass to buy?

Yes the D90 with a 50mm 1.4 is a great way to go. For cheaper you could even get a 50mm 1.8.

If you want to be able to buy old lenses on ebay, you could go with the older D200 from Nikon. It has some features that the D90 doesn't, like being able to use old lenses, and more advanced controls, but it's missing some things too like the ability to shoot video, and better high ISO performance.

I use a D200 and love it! It produces amazing results, especially when I use my old manual focus lenses. The only reason I would want a D90 would be to shoot video with such nice lenses.

I have also used a Canon 50D, which is similarly priced to the D90, and that camera is just amazing. I don't know much about Canon lenses, but I got great results with the kit zoom. The Canons are great too, just don't get a Canon Rebel, as you are trying to stay away from plastic feel cameras.

Honestly you can't go wrong with most cameras, as you can get great pictures with any of them. It really comes down to which bells and whistles you want, and what selection of lenses you would like to use.

I recommend reconsidering your 10 MP requirement for a starter, hobby-use camera. 10 MP is double what a typical person needs. Hobby photography at 10 MP will unnecessarily use up memory card space, hard drive space, be slow to work with in editing software, slow to upload to websites and make your friends and family angry when you e-mail the gigantic things to them.

For my casual photography, I turn down the settings of my camera to shoot at 3 MP.

There are excellent 6 MP D-SLR cameras on the market. I recommend saving money to buy one of those instead.

The 18-55mm lens that comes in a kit with most D-SLRs is an excellent lens to begin with. 28mm is approximately the same field of view as a 50mm lens on a 35mm film camera.

Disclosure: I am the owner of http://www.lenslenders.com/ in Canada.

Yet again I have to agree with the above answer. Personally I like the 50mm 1.4 very much, but it is not a very versitile lens. I use it mostly in the studio.