I've built half a dozen or so gaming rigs for myself and friends of mine, but recently I was approached by a co-worker and asked if I could build him a home office computer for around $400 (that includes windows 7, an SSD, but not a monitor). I told him it was possible but frankly, I'm used to building $1200+ gaming computers and don't really know where to begin with this build. Do I skimp on a HD and get a good PSU? What about the Mobo? Do I get a "cheap" one and spend money on a decent case? These are the sort of questions I have and if anyone out there wants to give me expamples of a solid, all around good build I'd appreciate it!