Petteri’s Pontifications has a great article on the fors and againsts of full-frame digital SLR cameras.

“My gut feeling when looking at what’s available now and what it needs to do is that the successor to 35 mm film is, indeed, digital APS-C. Full-frame is a little too hot (most lenses at most apertures and most focal lengths can’t quite keep up with the demands of the format, and the chips are difficult and expensive to produce, at least at the current state of the art), while 4/3 is a little too cold (Olympus has been forced to come out with monster f/2.0 zooms to provide even rudimentary available-light capacity, given the comparatively poor high-ISO performance of at least the current 4/3 sensors), while APS-C is just right—the sensors sharp enough and fast enough for almost any purpose, without putting too burdensome demands on the lenses.”

Website: To Full-Frame or Not To Full Frame?