Welcome to the Luger addiction forum Charles. I see that you have already recieved some good info. As Pete said Lugers are addictive (like potatoe chips, you can't have 'just one'). As far as dealers go many are reputable and there are some on the internet, just search for Lugers. If you find one you like you can always ask the forum members for thier opinion before you buy (recommended) since this will be your first one. If you don't already have a FFL I recommend that you get one as this will enable you to make purchases in or out of state either in person or by shipping. The one a lot of us have is the Curios and Relics (C&R) FFL. It costs $30 for three years and covers Lugers and hundreds of other firearms and ammunition as well. It's relatively easy to get if you do not have a criminal history.
Just go to this link and download the forms and mail them in with your $30. This will make it a lot easier to get your next Luger and will save you the $$$ you have to pay a dealer to do the paperwork and there is none of that 15 day waiting period stuff either for purchases. Sorry to see that you exist in the Peoples Republic of KA., and again welcome to the forum.
http://www.atf.gov/forms/pdfs/print2.htm