I am looking at laptops and the MBP 15" is seems extremely interesting to me. I have zero mac knowledge pretty much and I was wondering if my old external hard drive with music/vids/docs etc. (basicly just a storage hdd) will be just plug and play usb with a mac too? no mac formating and all that crap cause I still want to use it to share files with pcs Thanks and if you guys convince me to go mac, you better be ready to answer a shitload of questions I warn you. Windows has not many secrets for me but osx on the other hand well it's pretty, yeah it's about as much as I know about it.