There is a version of the HAF X in lime green if you're interested .
The Xonar DX should be fine for you if you're staying with turtle beach. My taste in sound goes a little out of that price range, which is why I felt the Essence was the right pick for me. I can't really tell you anything about it yet, as I haven't plugged it in yet because I'm anticipating moving everything to a new case in a few days to set up my watercooling loop..
Good guide to mechanical keyboards here by the way http://www.overclock.net/keyboards/4...ard-guide.html