I have the Corsair 600t which is the same internal layout as the 650d. I hate the 200mm fan at the front. So hard to keep positive case pressure. Of the midtower Corsair cases I like the 550d. It has better fan options. That being said I would go with the Fractal Design Arc midi as well. You can...
The Corsair 900d can fit 2 power supplies and stock 9 hard drives. You should be able to purchase 2 more cages to give you 15 total.
http://www.corsair.com/us/pc-cases/obsidian-series-pc-case/obsidian-series-900d-super-tower-case.html
The thing that you are forgetting in Georges response is that they are trying to create a case at a price point that they feel they can live with. With the amount of research and development that goes into their cases they have to be able to make a profit at the end of the day. If you gave him a...
lian li makes a couple
http://www.newegg.com/Product/Product.aspx?Item=N82E16811112222
http://www.amazon.com/Lian-Li-PC-V355B-Aluminum-MicroATX/dp/B00C9QBKDY/ref=sr_1_1?ie=UTF8&qid=1371217473&sr=8-1&keywords=LIAN+LI+PC-V355B