Thanks fo the replies. I checked out the sites you guys list and a few other. I found that Priceline offers cancellation insurance that you can purchase for an additional $15.00. I read through their policy and it does say they will refund the total cost of your airline tickets if you have to cancel due to an unforseen illness, or trip interruption. It even covers lost baggage. Not bad for an extra $15.00. Most other sites I researched were $50+ per person. Since I found the best price for my tickets on Priceline, I think I'll try their offer and hope I don't have to use it.