BusyMac has released BusyCal 2.0.2, a minor update that puts paid to several bugs. The update fixes some unspecified Google Calendar syncing bugs, a bug that prevented past due to-do items from showing in the To Do List, bootstrapping bugs with Daylite and Zimbra CalDAV Servers, and a bug that occurred when entering start times between 0001-0059 in 24-hour time. It also adds an option to print multiple months/weeks when viewing a custom number of weeks/days. ($49.99 new, but currently selling for $29.99 solely via the Mac App Store, free update, 8.3 MB, release notes)
File Email with a Key in Apple Mail
In Mac OS X 10.4 Tiger or later, you can use the simple and fun MsgFiler Mail plug-in to file Mail messages using keyboard shortcuts.
New in Apple Mail 4 (the 10.6 Snow Leopard version), to assign a keyboard shortcut to any mailbox on the Move To or Copy To submenu, you can also open the Keyboard pane of System Preferences, click Keyboard Shortcuts, and select Application Shortcuts in the list on the left. Click the + button, choose Mail from the Application pop-up menu, type the name of the mailbox in the Menu Title field, click in the Keyboard Shortcut field, and press the keystroke combination you want to use. Then click Add.