I was trying to compare processors for a computer that I might get/make eventually, and I determined that I don't know enough about the various chipsets to make an informed choice. To begin, I want to be able to compare processor prices including motherboards, since if a motherboard has a new/uncommon socket that's compatible only with a few expensive motherboards, that's an effective increase in the price of the chip. Further, insofar as I have a choice in buying a motherboard (several that all work with a given processor) I'm not sure how to compare them. RAM expandability is one clear difference, but what else is there and how much does it matter? I could really use a good resource on the topic -- I feel a little out of my league here.