Shoutbox

Surely it is possible to get the lists of people who have you added to their contact list and compare that to your allow and blocked lists and then any extras could come up when checked into some kind of window so you can accept or reject them easily (add or block).  This idea will also then work for everyone else prior to the introduction of the script.  I would try this except it is far beyond my knowledge of scripting but I'm quite sure it is possible to do.