Hello, I have a 17 inch Macbook Pro. I think its the time to get a hard shell cover for it becouse its getting dirty. My question is: Which one is better? http://www.speckproducts.com/products/seethru/macbook-pro-17/21 or http://goincase.com/products/detail/17-hardshell-case-cl57121 If there is other better ones than the two i saw please let me know. The Color i want is BLACK.