if you r going to have this system for a long long time why not get the Asus P8Z77-V PRO/THUNDERBOLT
u get onboard Intel Thunderbolt solution ino it's not that used yet but i think it will with time bcs it's an awesome solution for external drives with speeds up to 10gbps per channel and u can connect up to 6 devices on it.
for a little more info about Intel Thunderbolt go here: https://thunderbolttechnology.net/products
this board here would be the board i will take if i was going to get the Z77 chipset that's not ripping off my wollet for getting the Asus Maximus Formula V i so bad wants
(i just don't have like 430usd laying around for a board)