WOWCase, X-Guard Series Arachnophobia Aluminium Case for iPhone 4-Golden  : iPhone Case… for $29.99
I bought for my iPhone 4. This case listed at ebay about need $31~$35, I just got it here at $30. It made of aluminum, light, solid and /w the feeling of true metal. This case must install a front and a back frame together by yourself, ya~, it's funny.