Look for a case with dual 120mm fans in front, or up top. Some of the ones I would recommend are in the link below. Be sure to check GPU length / clearance (not sure what you have)...
http://pcpartpicker.com/parts/compare/corsair-case-500rbk%2Cfractal-design-case-fdcadefr4blw%2Cfractal-design-case-fdcadefr5bk%2Cnzxt-case-caph410w1/