Here's what I've come up with in a couple of weeks playing with my HF100. I'd like to hear from some of you guys with more experience if there are improvements that can be made. 1. Use card reader to copy original AVCHD files (have .MTS extension) 2. Use Toast 10 to convert the files. By default it wants to convert them to Apple Intermediate Codec. I've been choosing custom and converting them to HDV 720p30fps (I've got the HF100 set to 30 progressive.). I did some comparisons with AIC and this has been giving me quality that is almost impossible to distinguish, but at about 1/4 the file size. 3. Import to FCP or other video editor. (I'm not sure if iMovie will import them, I've got a PPC Mac, so can't load the newer versions of iMovie.) I keep the original .MTS files so I can go back and watch/edit them at full quality in the future, but this seems to be working fairly well for me right now.