How long has Caymus been making wine?
Caymus wine has been making wine since 1972. How long have you been drinking it? 
As long as I can remember! They're the first great California wine I got into.
What is your favorite blend? What would you recommend for a wedding?
I'd suggest their Special Selection, which is a big cabernet. If you're on a budget, Trefethen is a great choice that has a similar profile.
What is the price of the most expensive Caymus wine?
As far as I can remember, Special Selection is in the $130-180 range. It really depends on the retailer.
Thats a fair price for a special occasion... 
It's a lot more affordable than Opus One, that's for sure!
Opus one? I never heard about it....