I am now the extremely happy owner of a Canon G10! My Canon SD600 has treated me well, but it finally began to get glitchy (hello stuck in video mode), and just couldn't compete with the kinds of images I'm seeing around the web.
It's rainy and grey today, but I wanted to show some comparison shots - I took one this morning before rushing to work. Here are my baby seedlings. Not the best pic to showcase, but I wanted to post my new camera! I have a LOT to learn about it's many many features, these were shot on Auto mode, because the manual modes don't make sense to me yet.
G10 - sharper, brighter! wide angle!
SD600 - blurry, grainy, dark
Detail - G10 on left, SD600 on right