Need Mobo advice for new pc

[steelers91]

Approximate Purchase Date: This week or next (still waiting on the processor to ship)

Budget Range: Right around 600-700 before rebates

System Usage from Most to Least Important: Hardcore gaming, AutoCad, Internet
Are you buying a monitor: No

Parts to Upgrade: Motherboard, RAM, Case, PSU

Do you need to buy OS: Yes

Preferred Website(s) for Parts: Newegg

Locationittsburgh, PA, USA

Parts Preferences: Intel Processor, GSkill RAM

Overclocking: Maybe

SLI or Crossfire: Yes

Additional Comments: Already have 2 960GTX SLI that im going put into the new PC along with a 128 Intel SSD

And Most Importantly, Why Are You Upgrading: Current computer is around 6-7 years old and its starting to show its age and always wanted to build a PC. Currently im running an Alienware Area 51 with an Intel Core i7 6 core 980 with 2 960s and 12 gbs of RAM

This is what im thinking of building: https://secure.newegg.com/WishList/MySavedWishDetail.aspx?ID=32871727 with the processor being Intel Core i7 5930K

 

[Alpha3031]

What exactly do you plan on doing? Fill in this form please: http://www.tomshardware.com/forum/353572-31-build-upgrade-advice