Wow,boy that would be a neat trip! Some day I would love to drive my family all the way down the west coast from Canada to southern California!
As for events along the way,maybe Google the towns your passing through and see whats going on in them,just a thought.
I belong to this forum
http://www.classicfunnycarboard.com/.../ikonboard.cgi ask them if there is anything going on,they might let you know! Cool bunch of guys 8)
Enjoy the trip