I've ordered my first mb, a gigabyte ga-z68-d3-b3 for $80. This seemed the cheapest way for me to enter the z68 world. It is 16x pcie and 4x, so no sli. My thoughts are that in 2 years if I want to add a second gtx580 I will buy another mb that is 16x/16x but that will be standard at $100 mobo price point, and I will reap the benefits of 3.0 pcie, and other undiscovered goodies. Or just spend $120 now on a mb that is 16x/8x? Also, please clarify is sli an option on my current ga-z68-d3-b3? I can't find anything on this board b/c everybody thinks this is a cheap board.