Oh good catch J2j, I completely didn't notice that. Hmmm, if you do happen to have an IDE hdd you could reuse it but you would need something like this: http://www.newegg.com/Product/Product.aspx?Item=N82E16812232002
And I agree, don't get the absolute cheapest. If you do you are better off just salvaging parts from the trash/junkyard/ask for broken pcs.
Though my build is still very viable for gaming. Certainly blows the previous builds out of the water