spnd7,

Because you've asked a few times if X will be profitable, I just want to give a friendly reminder that bitcoins are an extremely high risk investment.  The numbers dbitcoin has posted give you a good idea if you're better off mining bitcoins, or just buying them directly, based on your cost of producing and the currrent cost of coins.  But we have no idea what bitcoins will be worth in a year.  It could be five cents, it could be five dollars.  Everyone here is speculating that the price will go up, but there's no guarantees that any of this will be profitable.

If you're fine with taking that risk and running with the GPU listed above, cool, but keep in mind mining isn't guaranteed free money.