I am not sure the size of the card or case but I would think you should be ok.
go to newegg.com and see the pictures.
I bought this case which is selling for 40 bucks after rebate & has free shipping. http://www.newegg.com/Product/Product.aspx?Item=N82E16811119137
I like it. DIY7 is just a possible guideline. you can pick any case you like as long as it meets your specs for that card.