You don't mention your CPU and many AMD CPUs can't handle 1600, but with AMD CPUs that can (I suggest a 965 C3 as a min), then I'd look at the GSkill Snipers F3-12800CL9D-8GBSR as a first choice, and the Ripjaws X F3-12800CL8D-8GBXM as a slightly higher performance 2nd choice