One of the mods here, Mark, wrote a utility for taking Quick Notes. Works great. From his Sticky FAQ thread..
Wireless Link: www.marky.com/files/bb/QuickNote.jad
Desktop Link: blackberryforums.com/showthread.php?t=25495
One hotkey access ("Q" key) to immediately jotting down notes that is automatically copied to the clipboard. Requires BlackBerryOS 3.6 or later. Free utility written by Mark Rejhon. To enable hotkeys, turn off "Dial From Home Screen" setting in Phone->Options (hotkey does not work on 71XX).