Hi I just bought a 2008 2.8 8-core Mac Pro and it comes with the stock graphics card (Radeon 2600). So I was wondering what would be better 2X GeForce 120s or one Radeon 5770 (I would get em on ebay so 2 120s is cheaper) and also I am planning to connect 2 LED Cinema Displays (24") also I don't do much graphic intensive apps some photoshop, illustrator and mild final cut work.