Well if you are going to be in San Jose, then I also recommend Brian Gundy of For Goodness Snakes (
http://www.for-goodness-snakes.com/about.html). Brian is a really awesome guy with some killer BPs and Boa Constrictors and I do believe he gives tours.
Another person you might want to contact is Dave Colling of Rainbows R Us (
http://rainbows-r-us-reptiles.com/about%20us.htm) he is also in the south bay area and has an awesome collection of Boa Constrictors and Rainbow Boas.
Up in my area in the East Bay is another well known boa breeder, Alex Barreiro of Boa Republic (
http://boarepublic.com/indexv3.html) who deals with boas, bps and some other exotic species as he deals with imports/exports as well. I do not know if he gives tours.
In fact, best to contact these people ahead of time via email or phone of course.
Another person in my area is Doug Price who does pythons, monitors and boas(
http://www.priceanimal.com/) he is also in the East Bay.
That's all I can think of off-hand. There seem to be more reptile people in SoCal but I haven't lived there since the late 90s and don't know any contacts for that area off-hand.
When you are up here in NorCal, please don't forget to check out the East Bay Vivarium in Berkely (
http://www.eastbayvivarium.com/) it's our largest reptile shop here in the bay and they carry quite a variety of species.
Hope this helps and hopefully your trip will be a lot of fun!
-April