I love working in and on data centers. The 2 we have now (well one proper DC and one large server room - 16 racks) were the 4th and 5th I have been involved in designing and deploying. I am more hands off now (Manager) but I still get in there as much as possible! Nerd Life!
Love this build!
Hey, for your next build you should look into a friends company for panels...http://totalcomposites.com/. You might have seen this already?
Anyhow, just finished showing my wife your rig, she was impressed. heh