~ So what do you mean by "sensor?"
~ By shot-to-shot I'm guessing you mean like taking the picture, then taking another one right after? (the digital I use currently takes literally three or more seconds to warm up and take another shot).
~ And what's "shutter-lag"?

Finally, what type of manual options are you referring to? What ARE manual options? I don't use anything really now, but if I know about them, maybe I'll use them.

As you can see, I really don't know much about cameras, but mostly it's because I haven't taken the time (if I had my own camera I'm sure I'd play around with it a bit more).

So if the Casio can take nice long movies (with a sufficient memory card of course, hopefully upwards to 1 GB) with sound, that's great for me. I'll go check out the Casio website to see what they say about your camera and the sound issue.