Your RAM will not work with your MoBo. You have to have 1.5V rating.
Other than that it will work but you can do better. Your MoBo is for single GPU set-ups. Perhaps a Gigabyte z77-d3h or a Asrockz77 pro3 will work for cheaper.
Also, you need to get a good quality PSU. A faulty PSU can cause you a lot of problems and even fry your entire system. I would strongly encourage you to spend a bit more in this area. Good PSU brands include OCZ, Corsair, Seasonic etc.
For gaming, I would spend more for a card. What is your budget?