I'm off to Victoria with my wife for a few days of R&R, but of course I'll take a camera with me. Do I take the 5D2, the 40D or even something pocketable?
The 5D2 isn't sig. larger than the 40D and has wonderful resolution and high ISO performance - but the lenses are so much larger. I'd have to take my 70-200, a 2X converter, and a 24-105 to get the equivalent of my two lens combo for the 40D 18-55 and 55-250.
I could take a traditional tiny sensor consumer grade camera but if we go whale watching, forget them for their poor focus speed. I could use a Panasonic GF1, but by the time you carry lenses that cover the same range as my 40D kit, they aren't a whole lot smaller and besides, I don't have one.
Once before in Victoria I took a Canon S3IS, at the time a decent camera, but could only make 5X7 prints with it - and I made a lovely image at Buchart Gardens that I could have sold many times over had I shot with a decent sized sensor camera. So far, what I have seen of the G11 and S90 test shots suggests that they are not going to be the panacea of a small camera, small zoom, general purpose carry around. My Panasonic FZ50 was decent but not great - great 8X10 prints but not 13X19 - so no, it will have to be the 40D. I think I'll pack my lightweight tripod too, for just in case. Will I regret not having the 5D2 - probably not - the 40D did very well for me in San Francisco and again in Germany and the two lens kit in a sling bag from Tamrac was easy to carry.
I have two batteries, just in case, and the small charger fits in a pocket of the camera bag. I'll probably take along my Epson 2000 both to view images and to back them up - it's a lot smaller than lugging along a lap top for what is supposed to be a holiday.