What's a good X79 board for overclocking an I7 4820k

[Bulldog6565]

Hey guys I'm looking for a X79 Chipset mobo that is really good for overclocking a 4820k hopefully past 4.8ghz. I've considered the Asus Rampage Black Edition but that is my price limit at the moment.
I plan on using a custom loop and water cooling 3 780s (R9 290s if price goes down) to power triple monitor gaming and for medium-heavy multi tasking and video editing. Thanks!

 

[Tradesman1]

Not sure of budget, would start at the Asus X79 Deluxe (one of the new Asus mobos)

 

[Bulldog6565]

Not sure of budget, would start at the Asus X79 Deluxe (one of the new Asus mobos)

I don't want to go past $600 but I don't want a mobo that is less value for my money. Right now Asus motherboards seem to be the best for overclocking.

 

[Tradesman1]

Could look at the Rampage Extreme, there's also the other new one, the Black (know the Deluxe and Rampage Extreme are great mobos, haven't gotten my hands on a Rampage Black yet