Yeah but that's always been the issue with water cooling in general. If the system fails it can be messy chip frying disaster. That's why I focused on air cooling and accommodating the large heatsinks for the current Qv2 version as they work really well... even if your fan quits.
CPU's are also getting cooler as they shrink to 45nm and 32nm tech although they've just been adding more cores to bring the heat back up to 65+W. Still waiting for game programmers to really take advantage of the additional cores though. That's why I still think the AM3 tri-core is the best bang for your buck gaming rig CPU. It has an extra core if needed, it's dirt cheap, very over-clockable, more cooling overhead than a 125W quad-core and will run anything out there very fast. In fact, I don't think you can perceptibly tell the difference in speed between a moderately OC'd AM3 tri-core and a stock high end Intel quad core at 6x the price. Especially if you have a speedy SSD.
On then other hand... it's kind of hilarious to see GPU cards getting so huge and toasty. So these self contained liquid cooling things are great as they can save space and move heat away from the inside of the case more efficiently.
Anyway, I'm keeping my eye on this stuff so Qv2 supports the latest and greatest toys. Apologies for taking longer to get the next version out. We're focusing on the new mini-ITX box line and a few OEM customers right now.
-Dave