I really need to order an external hard drive for my MBP. I'm buying my own 500GB internal Samsung drive, now I'm just trying to decide which enclosure solution to go with. What are the benefits of having a firewire 800 enclosure over a eSATA enclosure + eSATA expresscard? I know eSATA is faster but I've heard tell of issues getting it to work on Apple machines. I want to backup data and perhaps run programs off this drive, as well as use it for video editing. I'm concerned fw800 won't be fast enough. Thoughts?