Does anybody know anything about setting up/building a server from an old computer? I'm thinking about running a server off of my laptop (don't use it anymore, seen mixed reviews on whether or not to use the laptop, but no real explanation on why) or an old tower sitting in my closet. Any help on this would be cool, especially if it could end up being powerful enough to host a number of people (since it would be essentially free?). But again I have no real idea on a lot of this, so I could be completely off...