I purchased an extended Toyota warranty for my 08 Highlander for a much less price than what my dealer, I bought the car from, quoted. Here is the info:
Neil Hull CIO neilh@molletoyota.com| CELL 785 217 3212 | Office 816 942 5200
If you visit the Highlander 08 forum, you will find a blog on extended warranty for the Highlander and many have purchased from Neil because of price and ease of purchase. You can email him for a quote. Usually get a response within 48 hours. i would think Neil would offer a competitive quote for the Avalon also. I know most dealers cannot compete with his pricing. Its a factory extended warranty that can used at any Toyota dealership.