Ya these parts are exactly what i would use in my own system (except id get a black case, but i saw you picked out a white case in your build). I do admit the white with LED's looks terrific on the phanteks, i may even change my mind lol.
The only thing i can think of is i picked a mid range motherboard. You could always get the pro or deluxe versions, open the pics on neweggs site and look at the outputs on the back panel to see how many usb they have and if thats enough for you:
Pro
http://www.newegg.com/Product/Produc...-517-_-Product
Deluxe
http://www.newegg.com/Product/Produc...-506-_-Product
-A:
http://www.newegg.com/Product/Produc...-516-_-Product
Also here is an install guide/review on the CPU cooler into the phanteks case.
https://www.youtube.com/watch?v=LbSI1h8oJ60
CPU cooler installs are usually the "hardest" (nothing is really hard with PC builds just take your time) in a build, guides like this can be helpful. The best bit of advice i can give is buy a screwdriver with a magnetic tip : )
Feel free if ya got anymore questions.