It's been a while since I checked, but if I were in the market for a new 19, I'd wait for the upcoming gun shows. I think there's two in August. First is Aug. 11-12, 2007, at the Anoka Ice Arena. It's a crocodile1 show but because it's in Anoka, you'll probably see JJ's Guns there. Jon And Debbie Jensen have some of the best prices around. Nice people from Crosby, MN that come down to the Cities for shows. I bought a new 19 from Debbie about 18 months ago for $479.00 out the door. Granted they were cheaper back then but she still beat everyone else's prices.
I think there's even a bigger show on August 18-19 at the St. Paul River Center. Between JJ's Guns and Hart Brothers, you'll likely find a 19 for the best price available. Because you know what you want, you could even call both places in advance to check their inventory and prices. If it sounds good, you can give them your name and ask that they bring the gun to the show for you. All you then have to do is stop by to pick it up. (I've done this twice with Harts.)