Why the crazy high PSU? You need ~600W for that build. Unless you're planning to add a second GPU, in which case you should know that performance does not scale well with AMD GPUs.
And yes, if you're going to spend more than 1k on a build (IMO, even if you aren't), it should have an SSD as the OS drive. I recommend the Samsung 840 series.
Have you considered that if you invest in an LGA1155 board, a future CPU upgrade will require a new motherboard? The only new CPUs will be made for LGA1150 boards from now on, so consider going with the latter platform.
Also, just want to make sure you realize that a full tower is enormous and unnecessary for the parts you listed. People get full towers because they want huge motherboards, RAIDs with >8 HDDs, 3 x16 PCIe devices, all on a LGA 2011 platform. If you have 1 GPU, the largest you could conceivably need is a Mid Tower, and you could go as small as a Micro ATX Mini Tower or Mini ITX.