I am upgrading my system to Ivey Bridge and can not decide which motherboard to purchase. Asus P8Z77-V PRO or Gigabyte GA-Z77X-UD5H. Using Intel Core i7 3770K CPU. I am using a Sapphire Radeon HD6870 (Upgrading to Radeon HD7870 or going to Crossfire) Samsung 830 S 256GB SSD 2TB Black Caviar HDD 3TB Hitachi 7200 RPM HDD CORSAIR DOMINATOR 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 Seasonic X750 Power Supply Lite-On Blu-ray