What is it you want to achieve?
Maximum cooling? Maximum quietness?
For maximum cooling, there are hundreds of websites out there testing this. You'll probably end up with an AIO watercooler. Leaks haven't really been an issue since PC watercooling got out of it's duct-tapey infancy about 10 years ago.
I've ruled out water cooling, not because it makes noise, but because it could leak, and I need absolute reliability.
With an unlimited budget, why didn't you get a better CPU? The AMDs have terrible thermal performance and even the 8-core chips are slower than Intel's fastest quads.
I just built this computer. I didn't know that Intel's were doing better for thermal performance. I got the fastest processor Micro Center had in AMD - feeling wary of it's heat as I did. Figured I'd solve that later, I needed a computer. I made all the system design decisions in one day, just got it over with. I did not research it. I let the people at Micro Center tell me what they thought was good, saving checking into it myself (I guess I could have asked on forums first). Had the whole thing built in a few hours actually, from no design plan to having it going. I did over rule their ideas though. They thought Gigabyte motherboard, and I just said Asus, it's more expensive. They said cheap ram, I said Corsair, it's more expensive. Where did I mess up... I accepted cheap on the processor. Shoulda said, it's cheap, lets get more expensive.
I have to admit, I did anticipate heat going AMD though, because gamers like AMD, and most gamers could care less about heat and noise. While at the same time, wanting to save money on their computer. I wasn't trying to save when I got this processor... I guess I just went with their value oriented recommendation. Shoulda listened to my misgivings. However, replacing the motherboard and processor just because I did that seems a little of a waist at this point, a few months after buying it. It's just a bit hot, and a bit unstable as it gets hot. It is quite fast though.
For maximum quietness, you won't get around the HR-2(2).
I hope so. Seems like it should work well with a Silverstone FT02 case.