Best-in-class cooling, if it fits
The Cooler Master MASTERAIR MA824 Stealth measures 162.2 x 150.6 x 165.6mm (6.3 x 5.9 x 6.5″) with the 120mm and 135mm fans installed, which can definitely limit not only the case used, but also the motherboard and DIMMs. You might find a case only to be hampered by tall DIMMs tightly packed around the CPU socket. If it goes well, you’ll get your $100 worth out of the MASTERAIR MA824 Stealth.
The FPS review tested it against three other coolers, including Cooler Master’s previous MA624, and it beat the competition by a substantial amount. It also reaches a barely noticeable peak of 40.7dBA, which can be lowered to 35.8dBA if you reduce the fan speed. It’s not as effective as some of the AiO water coolers on the market, but it will definitely cost you more money and setup time.