Prying the top and bottom case apart with a metal spudger?, you'll ruin your xbox 360 slim case....your already voiding your warrenty, why not open it the right way??, their's is a pin-hole located at the back where the sticker is, just stick a pin into it and it will release that clip thats holding it together!
if you are going to do something like open your xbox360, do it right the first time.......