Currently Being ModeratedFeb 17, 2013 5:56 AM (in response to RVBob)
You can do a live screen capture on Quicktime X. When you go to Quicktime, go to file>start new screen recording. Just be careful it only lets you use the file later if it's in small increments, for example if you want to import it to iMovie it won't transfer if it's too long. Not sure how long it can be, sorry. It will save under you movies folder as new screen recording.