Matt Neuburg and Chuck Joiner talk you through Lion’s new features in this MacVoices podcast. The takeaway message: remain calm. 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.
Meet Lion with Matt on MacVoices