Got a case called body glove for my D3 and it's paid for it's self already. I'm a construction worker so I'm up and down a ladder all day and well sometimes I drop stuff. My phone fell about 40ft off a roof onto a side walk and didn't hurt it one bit.
I looked into getting an otter box but after a little research I decided to stay away from it. The plastic to me was not strong enough and I couldn't find one with a belt clip holster. The body glove that I bought not only has a belt clip but it's made out of some really strong plastic. it has a full warranty on the case. Anyone that want a good strong SOLID case would love this case.