My hard drive crashed and I will have to replace it with a new one. Any recommendations on what works best? I sometimes edit video and music on the MacBook so quality performance is a boon, but not a prerequisite. I have considered Western Digital Blue, Green and Black as well as the Seagate Momentus XT. Unfortunately, price is more of a concern than I would like it to be, but I'm willing to spend a bit more to have improved performance or memory. Any suggestions? Thanks!