If anyone asks me what I do for a living, I always tell them I'm an actor - which means that I wait tables. In L.A., this surprises no one. But I can attest to the perks of simply living and working in a cinema city, because these include getting to meet wonderful, down-to-Earth people who also grace my T.V. screen. Dann Florek (Law & Order: SVU) is one of those lovely neighborhood friends