@OP, I can provide u good deal on Biostar TZ68 A+, Not overclocking beauty but will sufficient for Turbo Boost. Also Z68 Platform. Actually the marketing guy from Biostar is good friend of mine so if I can help u anyway on Non Profit basis i would love to
Do consider suggestion by fellow members but Personally i will save 1.5k-2k on board & will spend it on getting nice cooler which is must even though u r Planning Turbo Boost(Most are confident with Stock HSF so the suggestion)
Anyways let us knw if we can further help u in anyway