Growl is integrated into OS X's notification center (which provides popup notifications). I would actually like to have the old Growl back (Notification Center

Growl is integrated into OS X's notification center (which provides popup notifications). I would actually like to have the old Growl back (Notification Center is completely disabled on most of my machines because I find it horribly annoying, whenever I open it it's full of months old notifications because it does not have a proper "read item"-mechanism. In addition to that once you unload it you will never see the OS X Update notification (Oh how I hate it) ever again.)