Greg-
Full frame cameras do offer better image quality. They have bigger pixels that collect cleaner data and you can't get around that fact. When you compare the 12-megapixel Nikon D3s and a 12-megapixel Olympus Four Thirds sensor camera, you're talking about the same resolution on a much bigger piece of property. In terms of image quality the Olympus just isn't going to compete. The question is, does it really need to? How many of us need what the D3S has to offer? And how many of us want to pay the price - physically - having to lug it around; not to mention the $5000 price tag. It's an awesome camera, for sure. But it's a lot more than most people need, most of the time.
I made a hands-on video intro for the E-5 but had trouble getting it edited. It's done now and I added it to the intro article. I actually show the E-5 and the Nikon D3s together. How about that for a demo![]()