Buy a fully functioning computer for $140 from Zazz

Trust me, unless you're a gamer or a video editor you won't need to pay more than $500 for a general computer and usually fully built computers you buy in stores have had at least $100 stacked onto it's original price for profit. This is the best, and this is coming from a self-titled gamer that built several computers for himself for gaming and his family for general use, computer for this price and you'll probably never see such a deal ever again. This comes with 80GB of hard drive space, 1-2GB of RAM, a pretty awesome Celeron CPU @ 2.4GHz, integrated graphics cards, and pretty much everything else you expect from a computer. It comes with Ubuntu(Linux) but you can get Windows XP Professional installed on it for a few extra bucks which is great for engineers for use with RSLinxs or other Rockwell software.