This kit is F4-3600C16D-16GVKC. These are Hynix D chips, so it's the same as the Trident Neo, without the silly RGB. These have been on Amazon and Newegg for around $75 for a couple months now. I bought some in September.
These scale well with overvolting, and are the best option for overclockers if Samsung B chips are too far out of budget.