Hi all, im in need of help picking out a used computer for 1 sole purpose only, im looking to a computer in my shed thats going to surf the internet for music and play spotfiy/itunes thats it. I need a computer thats used and small form factor as it will be in a shed.. i also need to know where to get it, looking for 100$ or less. i have been looking at a dell optiplex at dell actions online