Crysis max edition will include both Crysis, warhead, and also includes the multiplayer Wars.
Not sure who spec'd out that system, but there are some flaws to the philosopy to it. As pointed out, it doesn't do SLI. So you spent more on the mobo than needed as the 770 would have been enough or the 790gx.
Sound cards are only needed by people doing music recording. The onboad sound chips do VERY well.
You will have playable frame rates with that setup though. If you find that you are a little glitchy, look up cubans Custom Crysis mod. The team did a lot of work to optimize the graphics performance.