Looking for computer/technology conference to go to in 2005. I have 2 free plane tickets to anywhere in the continental U.S. and the wife and I have compromised. I finally get to go to a computer/technology conference.

Catch - It needs to be fairly close to a national park or scenic attraction of somekind.
San Francisco apparently has some good ones and Yosemite is somewhat close too. Looking mainly in CA or Washington. Oregon, Las Vegas, and AZ may also be an option.
Anyone know of any good ones next year?