1. Change your Motherboard to H77 board since you won't overclock.
2. Change your CPU to 3570. The non-k version. since you won't overclock.
3. I'm not sure about the cpu cooler but since you won't overclock might as well drop it. You don't need it unless you want a different look on your unit.
4. Change your gpu card to newer series, if your into nvidia, 660 ti/670. if your into amd, 7950/7970.
You could save money on changing the motherboard, cpu and dropping the cpu cooler to buy a better gpu card.