Spinpoint F3 HD103SJ 1TB 7,200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEMhttp://www.microcenter.com/single_product_results.phtml?product_id=0340562
5 dollars more, 500gigs more. Well worth the money.
Pay attention to the people above me on the mobo, running a cf on a 16/4 connection is not at all recommended and you will not see a good performance increase for the second card.
Another concern, is the psu you picked out enough to run cf with two 6850's along with what else you have.
I don't know, but those are some suggestions you can ask these fine people here.