We're driving our bikes down to the track on Saturday, see thread titled: "Bay Area - Hellyer anyone?"
http://www.bikeforums.net/showthread.php?t=96153 There's no way I'm riding 50 miles to the track and then racing, and the train doesn't get to San Jo early enough to ride over there, so you pretty much have to drive.
There is a beginner's session at the track on Saturday morning at 8:30am. Lots of fun, you guys should come....