iMovie ’11 can smoothly import video from camcorders, but with so many digital still cameras now shooting video as well, why doesn't the application recognize those clips, too? Over at Macworld, Jeff Carlson reveals how to bypass iPhoto and import movies directly into iMovie. follow link
Single Time Machine Backups
Tired of Time Machine running all the time? You can turn it off in the Time Machine preference pane, but still initiate a single backup by choosing Back Up Now from Time Machine's menu bar icon. Of course, your backup is much less likely to be up to date, but Time Machine won't be taking any resources while you're trying to work.
Import Camera Videos Directly into iMovie ’11