The Growl Project has released Growl 2.1, adding the capability to run scripts as actions as well as control notifications via rules using AppleScript. (For more information on writing AppleScript for notifications, see this documentation page.) The system-wide notification utility also addresses a problem with hanging when receiving more than 100 notes at a time, enables use of styled close buttons on WebKit displays, localizes Automator actions, and displays notes on both computers when using forwarding with Notification Center forwarding. ($3.99 new from the Mac App Store, 6.8 MB)
Copy Excel Selection as a Picture
Want to show someone a chunk of an Excel spreadsheet via email or iChat? You could take a screenshot, but if you want to show just a portion of the Excel window and you don't use a utility like Snapz Pro, you can do this right from within Excel 2008. Make a selection, hold down the Shift key, and choose Copy Picture from the Edit menu. You can select whether the selection will be rendered as though it was shown on screen or as though it was printed. Then just switch to your desired destination and paste.