Oh well...easy answer then is find 5-10 other alums who'd call 5 or 10
other alums and spread the word that way. Or, make 5 calls per day over a two-week period. It won't be so overwhelming to call everyone if you spread it out.
Here's two things you can take a peek at for ideas:
http://columbusaoii.freeservers.com/ (our general site) and
http://www.evite.com/r?iid=KQRPKQTHYFDNQJIKJXEU&li=iq (Evite for our first event)
PM me if you want to chatter more about this or need to bounce ideas, I'm a good idea-bouncer if I say so myself
Christin