The San Francisco WonderCon is a sister convention to the San Diego ComicCon.
http://www.comic-con.org/wc/ This year its from February 22-24, and my brother and and I are going for the first time despite the fact we have lived in the bay area for most of our lives. ;) (Of course, I didn't start hitting ComicCon until after I left Los Angeles.)
So...shout out if you'll be there. Since we don't have a hotel and the drive is almost 2 hours each way we're more likely than not only going for a single day, either Saturday or Sunday. We didn't see any panels we're interested in, we're just going for the exhibit hall, so I don't think it especially matters which day we go on.
Unfortunately it appears that Steve Purcell won't be at this WC. :P Oh well.