Why crossfire on two lower end cards? Just get a good one for the price you pay for those two mediocre ones for the same performance, and then you have your second PCIEx16 slot open for xfire later, instead of having it already occupied right off the bat. I would also get a better processor and a differnet Mobo, ASRock isn't a very good brand, I like to stick with asus or gigabyte. For gaming you don't need 8gb, 4gb is plenty. Get a 320gb HDD instead, it will be faster.