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I'd have to agree with Rodolfo. For what you're describing, the D50 is not a bad call, despite it's age. I still have my D50, and even though my D300 gets most of my use now, i still like taking the D50 out with a small prime attached, or a Tokina 12-24 f/4 wide angle zoom (version 1, screw drive, excellent optical quality...and cheap now) and exploring the world. Only 6mp, but nice big photo pixels/buckets compared to high megapixel newer point 'n shoots. I use mine up to 1600 ISO, and while not the low-light/low noise performer of today's gear, the character of the "noise" is quite film-like, something Nikon did right with this camera. Smallish LCD screen on the back, and only a rear command dial, but solidly built with a couple really nice benefits... Super long battery life and the classic Nikon screw-drive motor for all those older, D, screw-drive lenses, which the 3000 series and 5000 series don't have. I easily got 1000 or more shots out of a single battery charge...sometimes I wouldn't charge it at all during a month of casual use. A slightly better choice might be the D70s, which is very similar to the D50 with a few upgrades, but basically the same 6mp and IQ as the D50. Pick up an older 50mm f/1.8 screw-drive lens for around $80-90 bucks, or the older 50 f/1.4 for a bit more, or a newer 35mm f/1.8 G lens for a couple hundred.
Here's a link to some "test" shots using a 50 f/1.8 and 12-24 with the D50... nothing special artistically speaking, but you can get an idea of the images these lens/body combos produce, which were minimally processed using Picasa, (which is free) so they could be better using LR or Aperture or other software.
Sample shots with D50 and 50 f/1.8 and Tokina 12-24 f/4 lenses