Even though HDD prices are not as cheap as they used to be, I will probably have to suck it up and buy one to archive video projects. I know it'll be better to buy two and have two copies of the same drive but the prices now won't make that realistic right now. I currently use 1TB WD Caviar Blacks in my Mac Pro to work on my projects. For archiving, would it be better to use the same Caviar Black drive or the Caviar Greens? The 2TB Cav Blacks are $215 while the 2TB Cav Greens are $140 on Amazon right now. There's 1TB models too but I'm going for 2TB for archiving. What would you use? Thanks in advance.