What's your budget? Here's a build I have http://pcpartpicker.com/user/Nrmgator/saved/njx2FT that costs $768 before rebate, $738 after.
A newer Maxwell card will be more powerful while using less energy. You can swap in a 960 if you want more power for like an extra $30 dollars (this one: http://pcpartpicker.com/part/gigabyte-video-card-gvn960wf2oc2gd)
A newer Maxwell card will be more powerful while using less energy. You can swap in a 960 if you want more power for like an extra $30 dollars (this one: http://pcpartpicker.com/part/gigabyte-video-card-gvn960wf2oc2gd)