Built this system with two upgrades (CPU QX9770 & Graphics Palit GTX280) and a few mods: 1) Flipped power supply to keep out cat hair. Also allowed routing of EATX12V cable over PSU to back corner then up to connector. 2) Lengthened H20 120 output tubing, running it to back corner of case the up to water block. No tubing obstructs addition or removal of cards. 3) Half way up tubing inserted Thermaltake Flow TX Plus to see condition of coolant and measure temperature. 4) Used left over parts and 2 plugs to fill the Northbridge block with coolant. For the lower used black tubing from H20 120 and clear tubing from MB parts for the upper. Had to shorten plugs by about half of taper. Once inserted, full plug is impossible to remove from clear tubing without cutting tubing. Result is 10+ degree F drop under normal operation, as measured at center of circular area.