For 50$ less I don't recommand to go on am3 ... Stick to 1156 with the i5.
You don't need to save money, you need to spend it right.
I agree for the case, althought I'd still buy my haf 932 again, I just love it.
I wouldn't go for a cooler master psu,
I'd go for Seasonic, Antec, Xfx, Corsair. For 10$ more you may have a solid psu instead of an OK psu.
I totally agree for the graphic card, wait a little