I do not like the challenger case
Toms gave it an award for being the best case under $50 in a test they did . But they also said they wished they had $55 to spend on an antec 300 beause the challenger was flimsy and made with cheap plastic
An alternative at that price is the Antec ONE . Well made , good quality , excellent cable management
If its in your budget then get the Asrock 970 extreme4 .. It actually has the functions of a 990X north bridge chip . It can SLI and it can Crossfire . Its well made as any Asus board
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262&Tpk=asrock%20970%20extreme4It even has a header for front USB 3 ports [if your case has them ]
The antec ONE does