It's that time again. I have come across some cash and need a computer upgrade. I'm thinking about an Intel LGA 2011.v3 board. I don't want to spend more than $4,000. Is anyone excited about some new Mobo? I've built a few ASUS boards but the last one(ROG Maximus III Formula) was a problem child. I see some new technologies have come out, M.2, Thunderbolt? Any thoughts?, must haves?