Thanks to Boagworld for tweeting this wonderful Pines Notify jQuery Plugin.
It seems to have a whole bunch of features I could employ [although a little too late] into a current project:
Timed hiding with visual effects.
Sticky (no automatic hiding) notices.
Optional hide button.
Supports dynamically updating text, title, icon, type…
Stacks allow notice sets to stack independently.
Control stack direction and push to top or bottom.
Supports HTML (including forms) in title and text.
Variable opacity.
Supports Pines icons/jQuery UI icons/any CSS based icons.
Supports custom classes for individual notice styling.
Standard and custom effects.
Optional drop shadows.
Callbacks for various events, which can cancel events.
History viewer allows user to review previous notices.
XHTML 1.0 Strict compliance.
I don’t have much experience with jQuery, but I am really liking a lot of the plugins that I have been seeing lately.