If you are looking for an AMD system you can really brag about then the arrival of FX-9590 powered systems at popular retailers like NCIX and system builders like Puget Sound and CyberPower. Clocked at 5GHz stock it is the highest frequency consumer CPU on the market and as long as you can tame the 220W TDP you might be able to take the chip even higher. Not every retailer has listed their new systems at the time of posting but right now you can pick up a GENESIS system from Origin that sports a watercooled FX-9590 and depending on your choices the GPU(s) can be watercooled as well.
Velocity Micro also has a system ready for purchase and the Gamer Scorpius 9500 from Cyberpower will be ready in the very near future. As you are unlikely to see these CPUs for sale in retail boxes this may be your only chance to get a hold of one of these chips. The prices of the systems will vary widely depending on what components you want inside but keep in mind that you are buying a completely build and thoroughly tested machine with a warranty so don't dismiss these systems without comparing the pricing to what you would pay to build a machine yourself.