What's your favorite record store? I have a bunch of them: Princeton Record Exchange in N.J., Sound Garden in Baltimore, Bananas Music in St. Pete. But strap me to a lie detector, and I'd have to 'fess up that Amoeba Music on the Sunset Strip is my ultimate choice for flat-out nirvana. I've spent hours in there, and still haven't seen half the place. They've started a new video series called "What's in My Bag?" grilling customers, famous and otherwise, on what they've just purchased. It's pretty cool. Here's the full list. The Dave Grohl one is pretty good, too. I like the Ben Stiller 'cause he seems genuinely flummoxed, still getting over the daze of browsing that hellzapoppin' shrine to pop culture.