Are you referring to a specific DSLR? DSLR cameras have been out for years. They are already at a very advanced state.
If you are looking on eBay for a new camera, I think you are asking for trouble. If it's new, I would check the price on both Amazon.com and Adorama.
I have narrowed down to two digital cameras. The Panasonic Lumix DMC-FZ30 and the Nikon Coolpix 8800. I found some on Ebay for under 500.00 with quite a bit of extras. I want something to hold me over until the DSLR have been out for a while tested, and perfected before investing in one. I dont know how to evaluate between the two, So Im asking for someone elses advice. Anyone care to help inform on which would make a better camera? I will be using it for vacations, family and sports such as water skiing. Any help will be greatly appriciated