Just received my new (previous gen) 15.5" Macbook Pro 2.5gHz. Just picked up an incase bag for travelling with it. I'd like to keep it in great shape. I've seen keyboard covers, skins, etc. What is the best keyboard skin? Is there a protective skin that I can apply easily that will protect the outside and protect the wrist rests and possibly the trackpad? I've seen some online, but would like to know what people here use and like. Maybe I am just being OCD, but I'd prefer to keep scratches, etc on a skin and not on the actual macbook pro. Also, in addition, are there any must have apps? Sorry, this is my first mac and I'm a mac noob. Been a DOS/Windows user my whole life... until now Thanks!!