Is a nikon d100 good for $250?

I don't know anything about DSLRs but would like to get familiar, and start taking better photos. I saw a D100 for sale with a lens (which I know nothing about) and it peaked my intrest. My concern is that it is only 6 megapixels. Is this camera too outdated? Any help for a newbie to DSLRs?

Go to the Public Library and look at recent issues
of ConsumerReports. Library keeps back issues
for a year.
CR does a good job of reviewing cameras. Probably
can get a later model for less.

PS: good cameras don't make great pictures, Take
a course. Library may have camera books.

$ 250 is way too much for a 10 year old camera model unless the lens is very special, which I highly doubt. I've seen second-hand D100 camera bodies sell for around $100. Btw, the lens may well be the most important part of a camera, far more so than its megapixels count (see links below about the megapixel myth), so concentrate on the lens, not the pixels.

The D100 was a good camera in its day, and given enough TLC will still be capable of taking a decent shot but its ancient in terms of image quality, performance, handling etc. Besides, it never was intended a beginner's camera and its options and menu structure can be confusing for a novice.
I still own mine for infrared shots since its sensor isn't as heavily filtered against infrared light as its successors, but I don't use it for general photography.

If you want to invest in a pre-owned camera in the $200 - 300 range, I'd look for more modern, user-friendly models such as Nikon's D3000 or D3100 models, or Canon's Digital Rebel XTi (EOS 400D ) or Digital Rebel XSi (EOS 450D), sold under warranty from a reputable source (see link below).