Hello there,
AsRock z97 Extreme3 would be the best bang for the buck IMO.
It has SLI and Crossfire possibility, latest intel chipset, 8 power phase design for stable overclocking and up to 3100mhz ram compatibility.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157506&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=