Got half way through a hard drive waterblock on the weekend.
Couldn't go any further as I needed to come home and do a few little bits of measurement (Pipe length on motherboard side).
I've sort of had this design in mind for a while, but this really inspired me to finally do it:
http://forums.procooling.com/vbb/showthread.php?t=9175
I plan to have the pipe on the motherboard side come back over to the other pipe to make pipe runs easy.