I build PCs for poeple its low overhead (considering i work for myself and hire no one as of yet) its pretty nice money. I mean cheapest build you can get from me is like 350 bucks with me getting 35 bucks for labor on my 10% mark up. However I can build a PC hitting 10,000 just as easy and make 1,000 buck labor profit. I suggest go in it for yourself get business cards market aggresivesly. And treat every customer as its your last. I don't offer warranites or anything though as of yet causeI can't afford it.