A 6670 isn't a very good card for gaming or 3D rendering if you want to max the games/run programs quickly. I would suggest downgrading the CPU to a Phenom II X4 955 and upgrading the GPU to a 6950 or a 560 ti (560 ti only if you want to OC).
I don't know the price you're paying for that mobo, but in the US I wouldn't pay any more than ~$100 for a good one.
At that budget I doubt you can do better than the 6 core phenom . 3DS max can use the extra cores
I would make sure your motherboard can run the next generation AMD processors . The board has to be AM3+ spec . I cant even find the one you have picked on pccasegear to check the price , but Id go with either of these which guarantee upgradability because of the 970 series chipset