I'm an Expedia gal-- DH uses 'em too. I like that I can plug in different airports after the initial options are laid out just to see other price and flight time options. We live in an area where we could fly out of 6 different airports (three large, three smaller) within a 2 hour drive of our house, so it's worth it to look multiple places.
Sometimes I get their best price and then go to the airline's site to see if I can get it any cheaper. Most times I don't bother.
I'm sorry for your loss.
Mommy to DS (9/03) and DD (5/08)