Here's a tip:
Turkey Hunting Secrets
It's free. Roger Raisch IS trying to sell you something, but he put a lot of free content up to get your attention. I don't know him, but I do appreciate the service he provides to beginners.
Listen. Listen a lot more than you call.
Get out with the turkeys. Learn the animals. Get comfortable with turkeys around you without a shotgun in hand.
Fancy gear will not save you from being a bad hunter.
Hunting Flydown looks easy, but it isn't. I recommend that beginning hunters concentrate more on what happens after Flydown. Everyone envisions a gob pitching down from the roost and coming to rest right on the end of their barrel. Starting out, you won't be that good of a caller. Let the hens do the work for you. Leverage what they are doing and then add to it.
JPH mentioned this in another thread recently, and it's a topic dear to my heart: Trying to squeeze a yard or two out of you shotgun out past 40 yards makes it all the harder to take an easy chip shot inside 10 yards. Most turkeys that come in to 40 yards will come in to 10 if given a chance. Plan your setups accordingly and make sure you understand where your pattern is going to be at 10 yards.
Despite all the hooplah, most turkeys are taken by most people inside 20 yards. A 3" 20 GA out of a standard full choke kills them just as dead at that range as a 3.5" 12 GA.
Take all your gear out and practice with it before season in the conditions you will be operating in. I lost more turkeys to fogged eyeglasses than anything else until I learned better. Calls go bad in cold and damp. Cheek welds disappear when an extra layer is added under your jacket. Rain gear leaks. It's okay to go out in March and sit under a tree in the back yard and wait for the sun to come up. No one is going to mind. Your wife will think you're nuts, but she probably already knows that.
Cheap is good. Cheap can be better. You can take a can of spray paint to an old pump 12 GA and make a turkey gun out of it, so long as it patterns well. Old faded camo works best for me, and nothing ever matches.
Travel light. I gave up on a vest, because I was carrying too much gear. I now carry a small shoulder bag and a butt pad.
Buy durable footwear.