so two graphics cards for $150-200?
You could grab 2x7790's, they're $80 after MIR each
http://pcpartpicker.com/part/msi-video-card-r77901gd5oc
If one will be on 1050, and other on 1080p, you could get a slight imbalance in cards
Get one 7790, then for second card, grab an 7850 and OC the 7850 [this one already has a slight factory OC]
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127727&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
The 7850's are great overclockers and the 2GB of VRAM will be helpful