"Head...Shoulders...Knees and...SOCKS!"

So I want to change my AIM screen name. I've had the same one for years, and feel like it is time for a new identity. I have a couple registered (including arrrgylesocks) but I'd like to present a new identity to my non-Mindsay buddies. So do I go with our family nickname that so many know us by? Or the silly nickname that my boss calls me? I could use my real name or my wannabe business name?  I'm leaning towards the family nickname, because we already have that registered, and when people see it, they will know it's me (or Shiny). I probably won't get rid of my current name entirely, because I have quite a few people on there who I haven't spoken to in a long time, but I'm not quite ready to let go yet.  But then how do I let everyone else know - do I just send them an IM saying "Hi! It's me! Please note my new screenname! Thank you!" Hmm...what to do? what to do?

Just thinking out loud...