Ok, I'm looking at buying an InCase hardshell case for the peace of mind. I have a 13" aluminum macbook, but the colors they have left for it aren't great. I'm also vaguely considering that I'll likely upgrade to a 13" macbook pro sooner or later. So, that said, does anyone know if the InCase Hardshell for the 13" MBP will fit the 13" Alum. Macbook?