I went for the D7000 in the end, for the simple reason it'll probably be the only camera I'll have for quite a while, and I wanted a high-spec consumer product (because I really didnt need the build quality of a D300 or D700). I did consider the D5100 for a while, but the D90 was a better choice for me if I hadn't went for the D7000.
Ultimately, it's like Marcel, among others, has said time and again in different posts - pick the camera that suits you! And as for the lens, well... I read up more blogs, and posts, and opinions and whatever trying to decide whether to go for a cheaper d90 and 16-85 lens, or a D7000 and a 18-105 lens. In the end I picked the 18-105; not because it was cheaper, but simply because Ill probably only ever own one other lens, a bright portrait one, and that's all I'll ever need. Pick what you need, not what you think you need.