MSI Z87-G45 GAMING Intel Z87 (Socket 1150) ATX Motherboard (http://www.newegg.com/Product/Product.aspx?Item=N82E16813130693) ... theres no doubt that this motherboard is in a league ofi its own
theres both sli and crossfire support and the board will be a showstopper inany case,especially with a side window.....
theres also a killer nic network adapter which is a must for online gamers ( since it reduces ping times and also prioritises network traffic) and its superior features ( which also include OC Genie 4 for 1 click overclocking ) ....
new z97 version is also available
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130771