Check out I-movie, although it's a little difficult to import quicktimes into. (Apparently it's designed only to import video off the fire-wire, and not open other .mov files. There is a workaround I read about somewhere, but I don't remember the details of it.) You could check in to Final Edit Pro, too. I know very little about that program; it's a Mac Only software package. Of course, there's Adobe Premiere which is pretty expensive (several hundred dollars) but will do just about everything you could need for editing. Adobe AfterEffects works pretty well for assembling animation clips and adding sound, although it's a bit odd for getting rhythm going in editing. AfterEffects does a whole lot more than just assembling clips, though; it's often described as animatable Photoshop and is very complicated. For a simple solution, I'd look for something like VideoWave or VideoImpression -- I don't know for sure if they're available for Mac, but they're easy to use and relatively inexpensive. (I actually saw VideoWave II for sale at CompUSA for free (after rebate).) Hope this helps!