Hi, I'm wondering if any of you can help me pick out an External Hard Drive for my new MacBook Pro (non retina -.-). I'm really not a technical person so if any of you can steer me in the right direction that'd be great. The only thing that I want to use the Hard Drive for is Time Machine backups. My MacBook Pro has a 500gb non SSD hard drive so basically I'd like my external Hard Drive to be about the same thing. I'd like the External Hard Drive to be: -No formatting or anything required - I can just select the disk from Time Machine and I'm done -No preinstalled crap -About 500gb non SSD -If possible, FireWire 800 so I can take advantage of increased speeds over USB 2.0 -Long lasting, reliable -Compatible with a MacBook Pro running OS X Lion -IDK if this makes any sense but - not compatible with Windows so I can't get any windows viruses on it Thanks.