Camping SF Bay Area, CA

I know there are some of you who live in cities very close to us (Fremont) and was wondering if you could suggest campgrounds to check out that aren't more than 2 hours away.
We did Sugar Barge (delta) on our shakedown trip. Nice place to 'get acquainted' with the TM, has all the hook-ups, and LOTS of RV's - we were one of few trailers.
Have also done Brannan Island, only water hook-up and Del Valle which has water and sewer (at limited sites).
Having hook-ups isn't a requirement, especially for a weekend - but nice to have (as I'm sure you all would agree!).