You have selected a very cutting edge build, however I have some advice I'd give...
First of all, get a more powerful PSU. 450w isn't enough to do justice to a GeForce 970 GTX and will definitely not be enough if you run SLI on your Motherboard - something you might want to do in the future. I'd recommend a 700w or higher PSU just in case you choose SLI. If you're absolutely certain you don't want SLI at a later time then there are cheaper, non-SLI Motherboards to choose, and you can settle for a 550w PSU.
Apart from that, you've chosen an excellent build.