Not normally get?
Well, the only thing to be aware of is the requirement that the RAM be certified to operate at 1.65V. Any higher and you risk damaging the cpu. Also, with the RAM, if you get an X58 setup, you should be getting triple channel memory, but with the P55 i7 cpu, you should be getting dual channel memory.
WC is only a biatch to setup the first time. Once you know what you're doing, it's easy. Only downsides are that it's expensive, and that if it leaks, you're going to end up with an expensive paperweight. But thats why you leak test first...