Hello, I'm looking at building a computer mainly for gaming. I want to be able to play minecraft on the highest settings with mods and texture packs with no lag what so ever, I will also be playing ARMA 2, and possibly WoW. I also might be recording with fraps. So I'd like to play all on the highest settings with no lag.
The one thing that NEEDS changing, is RAM. The high heat-sinks on CMZ will clash with cooler. Suggest you use Corsair CML, Crucial Ballistix Sport, or GSKill Ares.
You don't need a huge case. A decent quality mid-tower is more than enough. Cases are a personal thing, but Corsair Carbide 500R, would be ideal.
Everything else is well balanced. Overall, it is above your stated need, so you COULD drop performance, to save money. Build will happily play virtually ANY game at ultra settings.