Are dual core processors still a viable choice when considering a new build? Quad-Cores seem to be the new thing, but I heard games are made to run on 1-2 cores! Thoughts?
Yes, very viable.
Read this article on gaming with <$200 cpu'shttp://www.tomshardware.com/reviews/best-gaming-cpu-core-i3-2100-phenom-ii-x6-1075t,2859.html
The dual core sandy bridge 2100 beats the phenom x4 and x6 in many situations.
It depends on the game, but faster/better cores is currently more important than many cores.