I play keeper and its all preference on which type of cleat to use. Some guys use a goalie specific cleat (6 stud, stiffer on top, laces are covered) while others use a more normal type of cleat. I personally use adidas predators with either metal or plastic studs depending on the conditions. I just don't like the way keeper specific cleats fit, they are usually pretty uncomfrontable, atleast for me. I would recommend to go down to your local soccer shop and see what they have, try on a few pairs. And one last thing, don't buy a cheap cleat, go atleast 100 dollars but if you can spend more. There is a huge difference between a 50 dollar boot and a 200 dollar one.