If i buy an eSata card and external eSata Raid 0 drives? I know its a pretty dumb idea but those are the best ones. And if i ever upgrade to another Mac, i would still want to use the external eSata drive as a boot drive as it will still be faster than the internal processor no matter which model, yes? At least it will be faster than my current dual 1.25ghz circa 2003. Has anyone actually done this?