My computer is still running a 550TI and is running Dota2 and BL2 very well. If you want to trim fat, go with a 750TI. It is around the same performance of the 760, and it uses less power so you can downgrade your wattage of your PSU.
http://pcpartpicker.com/part/asus-video-card-gtx750tioc2gd5...