Wrotniak's site is a great, well-written source for Olympus users (and those of us with an interest in the cameras), as for the most part it's a very fair appreciation of the pros and cons of the cameras in question - just bear in mind that like all resources, it's not infallible, and there's the odd bit of incorrect info in there - in particular, a blindness to the difference in size between 4/3 and APS-C, where he ignores the numbers only to accuse everyone else of doing it. Seems pointless, given his acceptance of the slightly more dynamic range of APS-C cameras and greater noise created by 4/3 cameras. Why he can accept the effect but not the cause seems rather odd to me, but that aside, the site is a really good resource.