A belated post, since we're already well into Q4, but here's what I saw in Q3 (favorites in bold):
Outside Lands Day 1 (Black Mountain, Beck, Radiohead)
Outside Lands Day 3 (Bon Iver, Andrew Bird, Broken Social Scene, Wilco)
Patty Griffin
Ida
MTT conducting SF Symphony & Chorus, Beethoven's 9th
Neville Brothers, Dr. John, Funky Meters
Joan as Police Woman
Spoon
My Bloody Valentine
Counting each festival day as one show, I've managed to see 37 shows so far in 2008, well ahead of my annual target of 26. Support live music!