What do you need to install in the case?
A huge case is not necessarily a better cooling case.
To my mind, Lian li makes the best quality cases. They are beautiful, and some are unusual.
Go look at their web site http://www.lian-li.com/v2/en/product/product03.php?cl_index=1&sc_index=25
Look at some of the legacy cases which might still be available also.