This is a pretty widely used PSU calculator, and is more extensive than the Asus calculator - http://extreme.outervision.com/psucalculatorlite.jsp
What's your budget like with this build?
In general, I would recommend the following
Case: Cooler Master 912/922 or Antec 300/900
Hard drive: Samsung F3 1TB, SSD for OS (if budget allows)
CPU cooler: Cooler Master Hyper 212+
Cd drive: really anything works here; Asus, LiteOn, and LG all make solid drives that I've owned (CD/DVD/Bluray)