Tim Cahill will be speaking at SJSU on Wednesday night, (April 28th) and it should be a great event. By the way, I was once at a San Jose gathering where he was present, and I can attest to the fact that he is exactly like his writing persona: the life of the party, funny, self-effacing and smart, roaming from room to room with an endless supply of stories. Currently he's the Lurie Professor at SJSU, teaching adventure writing to graduate students and undergrads here on campus.
It's pretty unusual when you meet an author and find that he or she squares with the voice that you 'hear' on the page and the persona that comes across in the stories. Alas, I've met a couple of my other adventure/outdoor writing heroes and found that one of them in particular was ... well, let's just leave it at that.