I think a lot of us would be hesitant to say this PC would be okayish (if two people use the word, it is validated
) And it's money spent, and likely you will lose some of it even if you can re-sell.
But if this is the only way to play . . . 12/7 is coming fast . . . frankly, you ought to be able to get WoW to run at some resolution, maybe a little lower than 1440x900 if necessary.
Spell details high, eh? Damn caster