I went without a case and a screen shield for a while...but then got paranoid about scratches. Bought some hard rubberized cases that although looked great, became lack laster after a few weeks. I want my device to look professional, not like a kid's toy. Went back to without a case, but with an invisible shield for about a weeks or so and got paranoid about scratches again. Finally bought this:

http://cgi.ebay.ca/ws/eBayISAPI.dll?...=STRK:MEWNX:IT

This was the best purchase I have ever made for a device. Not only is it top notch, it's made to fit the device perfectly and makes it look great. Unfortunately, they sent me the wrong invisible shield with it, but I love the case