Getting giant .mov files from your camera, try this to convert the silly format to mp3/h264, which is apparently a pretty awesome format, saving you lots of space and looking pretty good. The downside of course is that this will bring you computer to its knees. Especially if it’s a longer file. It’s all multithreaded so that it takes advantage of all the cores available, which is great otherwise it might take all day.
mencoder -oac mp3lame -ovc x264 INPUT.MOV -o output.avi