So I'm in the market for a mobo and I've narrowed it down to these two. Basically it's a choice between a top of the range P67 board or an upper-mid-range Z68 board. The price difference is around £50, with the ROG board (obviously) being the more expensive. So which one do you guys think I should go for. I don't really care about Smart Response because I'll just install my OS on a separate SSD, but the Z68 might still be worth it. Advice?