Would you be willing to provide dns secondary or backup email services?  I run my own dns server and email server, but it is a challenge to find the secondaries to make my services a bit more robust.  I don't really want close friends to do this, I'd like it to be cast a little wider.  It is even hard to convince the isps to do it, sadly.  But it is hard to find like-minded people ... you guys sound about right : -)  And if you like, I can secondary for you as well.