Something awful happened and you can no longer wait for Zen to arrive; you need a low cost motherboard and chip ASAP.  Your memory, storage and PSU are all good, you just need something to plug them into and you really don't want to spend a lot upgrading with new silicon just around the corner.  Alternatively, perhaps you have some components lying around and need a system capable of basic tasks and again, you don't want to spend a lot to get it up and running. 

The BioStar A68N-5200 eTeknix just tested might just be what you need, up to 16GB DDR3, a single PCIe 16x slot, a pair of SATA 6.0Gb/s slots, two USB 3.0 slots and four USB 2.0 along with other connectors and an quad-core A6-5200 with HD8400 graphics onboard.  You won't win any benchmarking contests but it is a decent start for $60.

"Despite a lot of the media focus being on Kaby Lake and AMD’s fabled Zen architecture, it’s important to remember that some users require a new motherboard as a matter of urgency and cannot wait for upcoming solutions. Not only that, in low-end scenarios such as a home office system or HTPC, modern processors provide more than enough performance."

Here are some more Motherboard articles from around the web:

Motherboards