I feel your pain, friend. I have a craigslist tab open at all times and refresh every 30 minutes or so and I'm still usually too late on the good deals. There are gems that come up from time to time between the $200 rusty UO-8s and Varsitys, but you definitely have to be quick. You can try the garage sale route but I haven't had much luck there either, and it's a bit more time consuming.