You won't need any extra cooling for the video card. As for the CPU, get a decent aftermarket cooler (like a Coolermaster Hyper 212+) if you have the cash and are looking to overclock. Those chips do tend to get a little hot and the stock cooler is somewhat noisy.
955BE is pretty old. I am not saying it is a bad solution for gaming and when you are buying its pretty good to buy what's new in the market.
But we dont have a budget from you actually help out. So please do mention where you are from and what's your budget.