A few years ago, a friend and experienced Turkey Hunter, gave me strong recommendations for a "Foolproof" Lynch box call - Model 101 as I recall. To go with the call, get a good set of decoys (jake and submissive hen would be my suggestion) . Also, get yourself a cushion or turkey seat you can be comfortable sitting on for an hour or so.
My advice on calling would be not to do too much of it, lest you say something wrong in turkey language and warn the birds off. Get a video or two on turkey hunting, or watch the TV turkey hunting episodes. Even better, find an experienced turkey hunter to mentor you a bit, show you how to set up decoys, give you pointers on when to call and when to shut the heck up, etc.
Good luck. SCL