it depends on what you are wanting to do with it, but regardless, here are a few suggestions:
1. If you are planning on overclocking your CPU (you are showing a 2500k) then your PSU is not going to handle it. The PSU may be iffy anyways since you plan on using a 7850 GPU. 450W minimum is suggested for the GPU, your PSU is only a 430. While the PSU may work, it would leave NO headroom for overclocking the 2500k. If you are not planning on overclocking, then get a non-"k" series CPU.
2. I am not familiar with the case you chose, but keep in mind, you get what you pay for. I would suggest a case from a quality manufacturer, such as Cooler Master, Antec, or NZXT just to name a few.
3. You could probably do better in your choice of memeory as well. You can get an 8 GB kit for near the same price as what you have listed.
4. Also, I don not see an operating system listed, don't forget you will need that as well. (as previously mentioned by SchizTech)