Good Case Suggestions

Solution
I should preface my suggestion by noting that you don't need to spend that much for a good case. The NZXT Phantom 410 (http://www.amazon.com/dp/B006I2H084/?tag=pcpapi-20), winner out of 15 mid-range cases Tom's compared (http://www.tomshardware.com/reviews/solo-ii-400r-buc-ravager-seiran,3274-10.html), is only $85 right now and should be absolutely fine for that build.

That said, one of my personal favorite cases, the NZXT 630, is also within that range, and would be an excellent choice: http://us.ncix.com/products/?usaffiliateid=1000031504&sku=80276&vpn=CA-PH630-W1&manufacture=NZXT&promoid=1288
I should preface my suggestion by noting that you don't need to spend that much for a good case. The NZXT Phantom 410 (http://www.amazon.com/dp/B006I2H084/?tag=pcpapi-20), winner out of 15 mid-range cases Tom's compared (http://www.tomshardware.com/reviews/solo-ii-400r-buc-ravager-seiran,3274-10.html), is only $85 right now and should be absolutely fine for that build.

That said, one of my personal favorite cases, the NZXT 630, is also within that range, and would be an excellent choice: http://us.ncix.com/products/?usaffiliateid=1000031504&sku=80276&vpn=CA-PH630-W1&manufacture=NZXT&promoid=1288
 
Solution


Closed case? Well, it has sides... The 630 has superb airflow, as do the 810 and 410 to a slightly lesser degree.

They all also support large fans and radiators, so space isn't an issue in that regard.
 


I have no idea why they would think that. The 630 has essentially no bad elements, other than perhaps price (that is, you can get a cheaper case which will still work fine, though the 630 would outperform it).

Glad I was able to help. Happy gaming!