http://www.myincipio.com/category/0_...licrylic_case/
i use this case from incipio... a little bulky but provides color changes and has a doubly layered case( 1st a soft case, then a hard shell) which provides shock absortion...just yesterday i dropped my iphone down the stairs( and of course it hit every stair with a sickening thud on the way down) and my fone was perfectly fine... in fact, not even the case had a scratch on it....also, the way the hard shell is, it comes up above the sides of the screen less than a mm but is just enough to stop the screen from actually hitting the ground....
...just my 2 cents....