Buy music! Help people!
The good folks at CDBaby.com, whom I have bought CDs from many times in the past and have always found to be delightful to deal with, are currently selling CDs from about 5,000 artists who want to donate all their profits to the Red Cross to help the victims of hurricane Katrina.
Surely one of these CDs sounds interesting enough to drop a twenty on? Or less? You could literally help somebody get through one more day down there in New Orleans, and maybe find a band you like besides.