Welcome aboard Onemacgyver, The posts by Rudy & LodiTom is right on, also any questions about MDing feel free to ask this forum,it has a great bunch of MDer's eager to help. I know I have learned quite alot from this forum and have met some of the members that live down in So.Cal. HH Vern2sjc
I you have not already purchased, take a look at the new Garrett 250.
It is a neat little machine and the price is great for all the option that it includes. It seems to have a lot more features than the Prism line with 3 tone ID, Visual ID, Depth meter, notch discrimination etc. ($250 MSRP) Probably get it cheaper on line or if you talk to a local dealer. Might be worth your time to check it out.
I personally think it is a great introductory machine that will do the hobby justice!! (find some good stuff with little frustration)