I have a few questions. I'm close to pulling the trigger on a MacPro, but I have a few questions. 1) What Rev are the current ones? Is this still the first rev? I'm a little weary of buying first rev machines, but haven't heard too many complaints. 2) I'll get at least on 500GB internal drive and, of course, I need a back-up drive. Should I get a second internal drive or buy an external? I'm less concerned with cost or speed, but was thinking that if I can unplug the external drive I can keep it off site on occasion and/or completely prevent anyone from hacking it. Thoughts? Is that being too paranoid? (I already *know* *THEY* are out to get me!!! ) 3) I think four cores is plenty so I'm not worried about the potentially imminent arrival of 8 core machines, but is there another *really* exciting feature that might appear in the next few months. I know it is all speculation, but if someone had good reason to believe that something "big" was likely I might wait a bit. 4) Are there any configurations to steer clear of? Bad video cards? Bad drives? Anything?