I would also check out the Fong-Kai's at Directtron.com.
If you are going to get the FK320, you definitely want to look at newegg too. They are very similarly priced, but ... while newegg doesn't give you the flexibility in PS choice that directron does, but if you want to get the basic PS that supports all the XPs, the ENP-0730, this PS comes standard on the ones newegg sells, plus the thumb screws, directron will charge you $16 more for that. shipping is similar (unless newegg runs another free shipping special, as they have done in each of the last two months.
The Fong Kais have a reputation for good quality & passive cooling engineering, whihc you indicated was important to you. roomy on the inside, but external bays are limited, though. there are lots of reviews on this case, do a google search.