The D50 was Nikon's low-end DSLR until they introduced the D40. I spent about $1000 on the camera body, a couple of lenses, and the memory card.
You can find D40s with a single kit lens for about $500.
They've discontinued the D50. If I had it to do all over again, I'd probably go for a D80 and a single lens, maybe the 18-135.