speaklightly: After i read your first post in this thread, i very pleased that you had refrained from mentioning the Fuji F10... but then i read your second post

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I done my research and i went with the Canon SD500 because i thought the extra cropping potential and image quality over the SD400 was worth it. I was also tossing up between it and the Casio Z750. I ended up with the Canon because it takes better "P&S" pictures and a few other niggly things that added up.
The Fuji F10 certainly looks like a nice camera and if i were to get a different camera to the SD500, it would definitely be between it and the Casio Z750.
That said, everyone values different things in a camera so make sure you go out and hold all those cameras you're considering, in your hands.
Just my newbie $0.02 answer.