With Digital Camera RAW Compatibility Update 3.7, Apple has updated its raw image support in Aperture 3 and iPhoto ’11 for several new cameras, including the FinePix 1000 from Fujifilm, the D5100 from Nikon, the E-PL2 and XZ-1 from Olympus, and Samsung’s GX-1S. (Free update, 6.62 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.