|Agree on upgrading power supply.|
You did not list memory, do not skimp on memory, get enough and get fast memory with low latency.
Look at the compatibility warnings on that page, if you use that case, you will have to purchase a USB3 front panel since it notes that the case includes only USB2 ports. Better to search for a similar case with USB3 ports included.
If the motherboard requires a BIOS update to run your CPU (see note), you may need another compatible CPU to install to get the BIOS update done so look into this as well.
You have to be a little bit crazy to keep you from going insane.