I'm from Ohio so I'm relatively unfamiliar with the West coast.
Seattle; Mt. Ranier, Seattle, Space Needle, Cascades, Olympic Mountains.
Bay Area: Point Reyes Beach, SF, Wine Country, Redwoods, Yosemite.
I'm looking to camp and do some urban site seeing as well. I'll also be going in the dry season so Seattle's rain shouldn't be an issue.
I could probably do both but It would take a lot more time, planning, & money.