I just bought my 442 online through galleryofguns.com and it was a great experience, plus my gun is guaranteed for life now, can't beat that. The FFL's aren't going to rip you off because they get a large portion of all their business through the particular website you're using so I wouldn't worry about it too much. Furthermore they ALL compete for your business so you'll have plenty of dealers to choose from. I also have a new friend from the experience. My dealer had become a United States citizen 8 years prior and was actually the armorer for the South African militia's and armys after he left Great Britain. There wasn't anything about firearms, claymores, etc. that this guy aka GunmanJack didn't know. He really sold me as a person when we began discussing terrorism.
My overall experience was an A+ and I highly recommend if you're going to buy from an online source you get the Davison's guarantee. If your gun breaks or malfunctions for any reason you just send it back to Davison and they send you out a brand new weapon, free.