Best case for under $100

With a $30 off coupon code the Fractal Deigns R4 is currently $79.

http://www.newegg.com/Product/Product.aspx?Item=N82E16811352020&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=