OK. just checking. I like to help locally when I can
I've never been a fan of Antec PSUs and single rail is always better. (ALSO http://ncix.com/products/index.php?s...r&promoid=1230
PSUs always run better when not pushed to the max. If you plan to add HDDs/RAM/second GPU I'd get the 750tx on sale.
edit: also the 400cx has a single 6+2 pin. http://www.corsair.com/products/cx/default.aspx