May not even OC at all initially, but most of my clients go with good quality mobos and K CPPUs so that down the road they can simply OC rather than look at a new mobo and CPU, it makes sense, and it's why many do it...The H87s are for OCing as you suggest, which is sort of a waste of a K CPU and would have to be replaced if one wanted to go with a good OC, also best to get the full amount of DRAM you want all at once, not 'ADD' DRAM later, anytime you mix packages of DRAM it can be and often is problematic, the memory area is full of people wanting to know why their DRAM isn't working, they did what many have suggested (as you are doing) and the DRAM isn't playing together, DRAM is sold in a wide variety of packaged sets to cover most any amount you want - the sticks in each pack are tested to work together as a set and the XMP programming in them (for sticks 1600 and higher anyway) is done for the set...when you look at a 4 stick set, it may take a advanced timing for the tRFC od 378 while a 2 stick set only takes 208. That's also why 2 two sticks sets often cost less than a 4 stick set, it's easier to find 2 sticks that play well for a package than it does to put together a 4 stick set, hence the higher price