Try the candy shell grip . I got a purple and black one, and it has rubber inlays, so the scratch able parts of the back never touch anything. It feels really awesome and fits like a glove.
Wife got the white/black one for her white iPhone and it look/feels great. I have a black and the only one I would consider is the blue/white. I want a different color around the front bezel so it looks better than just black.
Does anyone have the blue/white on a black iPhone? pics please.