The price point using ebay on used equipment is a good suggestion. Be sure to test the camera and lens. Run it through it paces. Check for hot pixels, dust on the sensor and if it uses a compact flash card check that the pins are not bent.

As others have stated you cannot go wrong with Canon or Nikon. They are the top tier of DSLRs manufacturers and lenses.

If you plan on printing be sure to look at a quality photo printer from Epson and use a calibration tool (hardware and software) for your monitor for best results.