I ordered my cpus from a hong kong seller. I had to wait a week for them to arrive, but they were well packaged and works like a charm. If you find a seller with good reputation, there shouldn't be any problems.
I bought a Fractal Design XL R2 case and put in two "Arctic Cooling F12 PWM CO 120mm" fans (since the fans that came with the case was 3-pin and couldn't be controlled by the MB, which uses 4-pin connectors) and used two Cooler Master Evo 212 for the cpus. The computer is almost completely silent even at full load.