Telestream has released an update to its powerful screencasting application ScreenFlow. The new version increases the time limit for YouTube videos to 15 minutes (instead of 10) and corrects several other issues with exporting video. These and other bug fixes come just a few months after the 2.1 release of ScreenFlow, which added the capability to create all-in-one Flash video - including the video itself, the Flash player, and the necessary HTML - along with 64-bit audio capture support and automatic document saving. You can try the software for free, but exported movies will be watermarked. ($99 new, free update, 8.2 MB)
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.