Newegg offers the G.Skill Ripjaws X Series 16GB (2x8GB) 2,400MHz PC3-19200 DDR3 PC RAM Kit, model no. F3-2400C11D-16GXM, for $66.99 with free shipping. That's $5 under our October mention and the lowest total price we've seen. (It's a current best by $13.) This dual-channel kit features 11-13-13-31 timings.