I need to buy some kind of external RAID/Storage setup for my Mac Pro. I went straight to a Drobo, eventhough the price has dropped it is still only 4 bays. I did some searching on Newegg and came across this. I was wondering if anyone sees a reason not to get it. It has 8 bays and has ESATA so it would be a faster transfer rate? Correct? With a Drobo am I only paying for the Drobo software? Any help would be appreciated. Thanks