"A Disappointment"3.0 starson by DanM2
Pros: Great pictures with sunlight, beautiful video, light, small
Cons: Mottled, noisy pictures when not in sunlight (when at 100% resolution)
Summary: I got this camera because I was so impressed with another Canon, the SD550; a friend owned one and had uploaded his photos to my computer and I'd really been amazed at their detail and clarity.
So then I bought this SD1000, expecting even greater things since it was newer. I uploaded some pics to my computer, and I was shocked to discover that, despite its next-generation technology, the SD1000's photos were of much lower quality than the SD550. The sample video I took was great, it was like a camcorder, but the photos looked blotched, noisy and mottled when viewing them at 100%. The SD550's photos, in contrast, looked sharp and detailed.
I tried taking some outdoor pictures in bright sunlight and this mottling and haze mostly went away. But I'm not interested in a camera I can only use when it's sunny. So I'm returning it.
This may not be a problem for you if you only view your photos as small prints; I didn't print any samples to check. As for me, I primarily view my photos on my computer, and I like being able to zoom in to 100% and see crisp detail.
I recommend going to a site like Steve's Digicams and opening up the sample pictures from different cameras in different tabs in your browser. Compare them, going back and forth. When i did this at 100% resolution (browsers resize images to fit in the browser window, so be sure you click on them to resize them to 100%) with the SD550, the SD700IS, the SD1000, the SD800IS, and the SD900, I found that the SD1000's pictures looked the worst of all of them. I showed them to a few friends and they all agreed. The SD1000 had the most noise, the most artifacts. In comparison the SD550 looked the nicest at 100%, with the SD700IS very close behind.
Both of those cameras use the older DIGIC II processor. I think Canon has really taken a step backward with its DIGIC III in terms of image quality, though I guess it allows fancy things like face recognition. But tastes differ, so go check out some sample pics yourself before you buy.