Diana,
Once you get to the golden state (the real golden state, SoCal doesn't count) allow me to make a few suggestions:
1) KEDU (Davis) is a total bust unless you have someone to see there. Go to placerville (KPVF) instead. It is beautifully nestled in the hills, but only at 2585, there is the Amador County Wine Country and the Apple Hill Growing area near by. If I am home, I'd be happy to spot you a bottle or three of our spectacular Zinfandel. KPVF also usually has just about the cheapest gas.
2) KHAF (Half Moon Bay) is probably the most beautiful airport on the West coast. I know that the Seattle guys all love the San Juans -- and they are beautiful -- but HAF is amazing. HOWEVER, it is also fogged in half the time, you might plan to either hit it on the way up or the way out, so as to get in (I assume the citabria is not IFR). But I would defiantly try to get in if you can.
3) Watsonville? I know you said you don't want fany airports, but Monterey is a cool town (they have a John Steinbeck wax museum). Alternatively, go into someplace like Sonoma County, the FBO is friendly, if a touch fru fru, and the gas is a bit pricey (although pretty much par for nor cal). On the other hand, the Napa Valley/Sonoma County area is beautiful. And wine.
4) Finally, try to get a "bay tour" up through the SF Bay area. San Francisco is a truly amazing city and an evening bay tour is the most romantic thing I've ever done with a girl (to be fair though, I think it's the only romantic thing I've ever done with a girl). Your best shot of getting into the class B is if you arrange it in advance. PM me and I'll send you the NorCal Approach special event coordination number.
Just my .02. Sounds like a great trip.
~ Christopher