i purchased the asrock board for my system and i built my brother one with the asus z68. i have to say both boards are pretty decent. neither of them got very hot (i had a gigabyte 990fxa-ud3 board a while back and that boards northbridge got insanely hot!). i think i slightly preferred the asus boards bios. their manual had less typos too. lol. i didn't overclock the asus board but the asrock wasn't too bad. it has decent options. i can't vouch for included software because i didn't install any of it on either board. only big difference between the boards that i found when i was reading the manuals was the last pcie_16 slot. on the asus if you are going to use that last slot in x4 mode, it disables the usb 3.0 header, esata, and both pciex1 slots. the asrock only disables the two pciex1 slots. i didn't use that slot for either build so im not sure if that should affect your decision much. as far as the ram goes, i don't know about the gskill but i used 8gb corsair vengeance low profile in mine and i've had no problems whatsoever. ultimately, i don't think you can go wrong with either one.