Congrats on buying that brand new Samsung Galaxy S III . Now you probably want a case to protect it. I have 2 cases from Seidio for your consideration. They are the ACTIVE and SURFACE cases, which are available in multiple colors, with or without belt holsters and one even comes with a kickstand.
ACTIVE is available with or without a kickstand; Belt holsters are rugged and can be worn in portrait or landscape orientation
SURFACE case is much too hard to remove