ok thank you for your input appreciate it,.,also how good is duel video cards i mean if i were to get another 560 and run it with my 560 i have would HOW much better is it?? then just 1 graphics card.
Depends on your motherboard, you could see up to about a 50% improvement or you could actually see a rather large loss of performance (down to 1/8th to 1/16th original performance), again all depends on your motherboard.
Though to be honest its usually not worth it unless you have a specific need for it, my buddy has a system where he was running an AMD 7870 with eyefinity across 3 monitors, he got another one and connected in crossfire and his gaming performance dropped, he had about a 20% drop in frame rates, and instead of screen tearing one line on one screen he got 2 lines of screen tearing on that one screen. His motherboard was designed for crossfire too.