Jaap, we've both seen lots of flash pictures that look naturally-lit thanks to knowledgeable use of diffusion, bouncing, slaves and a host of other techniques, though that shot is more along the school of Speed-Graphic-#2-flashbulb-in-the-face popular 50 years ago (before we were born of course
) . Even the problem of sequential flash photography can be solved with specific batteries and <1-second recycle times. What remains a problem and always will, is the inability of any photographer to maintain a productive rapport with anyone but a professional model after repeated bombardment with strobes. Existing-light photography of people is my preference as well, however I happen to get better results with autofocus than a rangefinder and I haven't noticed the 20D's small mirror slapping causing me a problem (maybe the rubber-clad body also absorbs a lot of vibration). And of course in high-ISO performance Canon does have one up on the rest of the brands out there.
