some quality psu, like corsair, enermax, antec, cooler master, power&cooling, at least 550W, preferably 650W. about the case, a lot of them are good, look for cooler master and antec.
------------------------------Which Chip? Well, it depends on which set of thieving b@stardz you choose to support: The ones who use insider trading to enrich themselves while running their company into the ground, or the ones who illegally pay vendors to not support the first group.
Reply to Scotteq
My recommendation on Power Supply is at 850 watts - this will grow with your system - Also highly recommend the modular system - use the power cords you need, this will keep air flow better in the box. This will cost more money, in the long run, it is worth it and I think you will love the modular system and glad you bought it.