The D80 is a great camera, but too far past its prime for you to bother buying. Go with a newer entry-level model, like the D5000. Here's what we had to say about the D80 when it was released in August 2006:
The Nikon D80 is an affordable 'enthusiast' level dSLR, offering the same stunning quality that the beloved D70 had, with some important and impressive improvements. The D80 upgrades virtually every aspect of the previous D70 models, with the exception of a shutter speed that is half as fast as its predecessor. Other than that, with a 10 megapixel sensor and the same high-capacity battery seen on the D200, this dSLR is a welcome addition to Nikon's already superb line.
Note: This is a BODY ONLY model. For a D80 with an included lens, visit here.