I've been using a Spire Thermax Eclipse II on my Phenom II X6 build, and loved it. I had planned to use it on my current build, but jumped on a CoolIT Eco for $10 and installed that just for fun. I fell in love with water loops right there. I love the way they look. Simple as that. The thing is, I cant justify spending $400 on a custom CPU loop. That's where AIOs come in. The coolIT Eco can't handle my 4770k past 4.2Ghz, so I'm going to need something better if I want to hit my goal of 4.6Ghz. Which AIO is best? One of my biggest pet peeves is noise (I might even go all water this winter to keep noise down). I was thinking the H110, but I'm worried the older pump technology might be louder than the new H100i. I've also heard a little (but not much) about the NZXT Kraken X60.