There are other solutions to backups not involving Amazon’s S3. If you insist on using S3, this seems like the easiest solution, the comments hold particular value; suggested usage includes rdiffs and swapping out launchd for Automator and ical. Read the article here.
Handy calculator for the command-line. Hey, it’s already on the mac.
Lighten OS X’s Load with: Turn off widgets: In a terminal type: defaults write com.apple.dashboard mcx-disabled -boolean YES killall Dock You can turn widgets back on with: defaults write com.apple.dashboard mcx-disabled -boolean NO killall Dock Make hidden apps ( in 10.5) look transparent: defaults write com.apple.Dock showhidden -bool YES killall Dock