This is a great case: (Antec 1200)http://www.newegg.com/Product/Product.aspx?Item=N82E16811129043
Its the top rated full tower on Newegg.
I have the smaller Antec 900, and its really nice. Its has a sturdy design, lots of quiet fans, looks tight, and is easy to use.
The 900 is too small for an 11in 5970 . But, it is the TOP RATED case on newegg. That shows just how great the Antec 900/1200 are!