I'm in the market for a D300(body only). I found two sites that sell them super cheap. They both say they have USA warranty.. Is there something I'm missing that I need to watch out for or are these sites ok to buy from? http://www.1wayphoto.com/ has the D300 for $849 shipped http://shopdigitaldirect.com/catalog/index.php has the D300 for $799 shipped What do you guys and gals think? Am I safe buying from either?? Anyone buy something from them before??