have you bought enny of the parts that you have listed?
if not, for the loop you need a pump, reservoar, CPU block ( processor ), GPU blocks ( video cards ), tubing, fittings, fan controller ( to controll the fans ( drop the corsair link ) )
run 1 and 1 rad on each fan channel ( as long as it dont go over 1A per channel ), and Y splitters to connect 2 and 2 fans ( one on each side of the rads ) and then all 6/8 fans. ( if you understand ).
here is a dessent fan controller example- >
http://www.frozencpu.com/products/19783/bus-349/Phobya_TPC_30W_-_4_Channel_525_Bay_Fan_or_Pump_Contr...take a look in this link and see if get a lill knowledge on how it CAN be done.
http://rog.asus.com/forum/showthread.php?23795-overkill&p=272389&viewfull=1#post272389you get a view on how things work or a lill guide on what parts you need.