I know only a little about computers, and i have a few questions. I am thinking about having some guy at a computer store build me a computer, but I was just wondering, is it even important for me to ask him where he buys his parts? I mean, is it possible for parts to be low in quality? For example, is there a chance that an i5 2500k processor from newegg.com could be higher in quality than the same processor from another website or store?