gersdorf,
Do like Muddy says and be patient and persistant. The best thing to do is take a veteran with you and you can learn a tremendous amount of knowledge.
Watch a lot of DVDs and read, read, read.Each bird is different and all the advice you have received so far is correct but different to each bird.
I use as many calls as possible. The box and slate are the easiest. I had a buddy that only used one diaphram and shot a bird everytime.
As far as locator calls try an owl hoot in the morning and night. Crow calls are also good. Some others I have used are coyote, pileated woodpecker, peacock, and a goose or duck call.
As far as how much and how long it will depend on the bird. Some factors include: what season is it?, hunting pressure, time of day, weather, and are the birds with hens or not.
How long to sit will depend on the bird and your patience and how long you are willing to wait. If the bird is moving away from you and gobbling you can circle around him if the terrain allows. If the bird quits gobbling he may be coming in. He may just be standing there waiting for you to come to him.
I know a lot of this is vague but patience and persistence and just having fun like Muddy says is the key.
Stick with it because you will learn something everytime you are out.
Good luck and keep us posted.
Risto