Good build but I would change a couple of things...
-No need for such a powerful PSU, even if you ran SLI and OC you only really need a 750W.
-Price/performance the GTX 970 is a better choice, plus if you decide to SLI the performance will be slightly better then the GTX 980ti.
-WD Black would be a better storage drive over the Seagate.
Everything else is good.