so i wanted to get an hdd with 500gb and 7200rpm is there a certain brand i should buy? or stay away from? and where should i get one that come with the necessary enclosures and what not so i can just unscrew my old one and screw my new one in. also when i do get it, i have a time capsule so when i install it can i turn it on and have it boot from a previous time capsule back up? thank you!