Are you averse to building the system yourself or are there other reasons for using C.p?
I only ask because you could cut a lot out of that build and save some money for upgrades like Ram.
My opinion,feel free to ignore,criticise etc as you see fit
Go for an 890 Mobo instead of the 770
lose the 'liquid cooling' option
lose the 'professional wiring'
are the soundcard and speakers absolutely necessary?
The chips a bit overkill for a WoW-only Rig, boiled egg/dynamite style
an AMD 435/440 will run WoW fine at much less outlay
Re-use old cd drive and case if possible,
go for a 550/600w psu, corsair or similar
lose the 3 year warranty (unless you really really feel better/more secure by having it)
look at upping the ram speed (Dependant on Mobo and chip ofc)
thats just my opinion though, others will differ