MZ - My mom has a D90 (I use it, mostly), and it's a great camera!
I only have these 2 one my computer right now, but they were both shot with a D90.
I'm looking at new cameras that work well in low light situations. I'm pretty sure I'll end up with the Canon Rebel T2i. It's a lot like the Canon 7D, but much, much cheaper. The Canon 7D and T2i both have the same video quality as well, and both work extremely well in low light.