I'm in the same boat as you but I think I'm going to stick to 8gb. I didn't like that set because the timings are a tick slower at 10's rather than 9's. I think I may get this pair:
Most of the gskills are red, but all of my stuff is going to be blue so I picked that set. It's a few bucks more than the stock reds but it looks like the timings are 8's, so thats nice.
Or would these be a better choice at 1866?
Sorry to jack your thread, maybe we can share it for some opinions?