Chillen!
Looks pretty nice, clean wiring.
Just a recommendation, move your HD up one notch so it gets better air flow around it, if you have the room anyway why not.
I have both of mine located in the same bay with an 80mm fan right in front of them, keeps them cool.
Where's your VGA or am I just blind?
Also, just for information purposes there is a company out there (CoolIt) that has some nice CPU coolers. I think this is the way I will go if I decide to go that way. With this system you eliminate all of the extra hoses, outside components, etc. It may not look as nice as some setups but is supposed to cool better than normal H20.
Nothing against your system, this is just incase you haven't heard of them.
http://www.coolitsystems.com/