I was thinking about buying a Mossberg 500. They have one for sell new for $350, but this weekend they are running a 10% off sale. It is the security version with both the 18 1/2" barrel and the 28" field barrel. This sounds like a pretty good deal! Is this as good as I think? I figure there would be a few with more experience than me. I've mainly been around handguns most of my life, this would be my first shotgun. Any comments would be welcomed. Thanx.