What's the primary use for this system? If it's gaming the 3770K and 16GB of RAM won't be needed - you can invest that elsewhere, maybe in upgrading your cooling solution.
The HAF X is huge - you won't need it unless you're building around a monster motherboard - go with something like the Antec 1100 instead.
I might add another gtx 680 in the future, i don't know if that mattered for the case
This is a gaming / video rendering computer. where i might render 2-3 videos at a time using programs like sony vegas pro 11
Does that motherboard seem solid for my needs / can it work with 2 680's in the future?