Just a quick post for anyone that has this kit and is looking for overclocked settings. These should give you a starting point. No guarantees these will work on every CPU and memory as no two processors or memory modules are exactly the same.
Maximus IV Extreme - BIOS 1485
Corsair AX1200 PSU
OCZ 120GB Vertex SSD
GSkill Flare 8GB f3-16000CL8D-8GBFLS Memory Kit
Noctua NH-U12P CPU Cooler + 2x120MM fans (push-pull)
You may ignore my CPU overclock settings and choose to substitute your own as parts and cooling allow
tRRD, tRTP, tWTR are all set as tight as DDR3 timing constraints allow at the chipset level.
tRAS can go one clock tighter to 23 if desired (minimum tRAS is tRCD+CAS+tRTP), though some modules might need a touch more VDIMM.
I have set BCLK skew to +100 as it helps with stability on my CPU - you may wish to experiment with this.
Any questions, feel free to ask.