SF is no prob for me and I can even give others rides. :)
I'm really good at being a designated driver. :)  What we 
could do is pick a date and see how many folks would be
interested in making it.  Then, we can scout places more
effectively and warn the place we're coming. :)  Or, if 
we're concerned about elbow room, could do maybe a pot-luck
type gathering in a park?  Then we could have cels and...
volleyball or something. :)  Let me know what y'all think! :)

Jen