I have a spare laptop that I want to find a use for. It is about 5 years old, has an 80GB hd and the battery is dead. It still works on AC and I don't want to invest in a new battery as I already have a better laptop and 2 desktops. So, what is a good use for this thing? I don't need more central storage as I already have a 1TB NAS with a media server running on it. Is there a way to run antivirus/anti-spyware apps on a central machine and have the others route through that? If so, would that mean I wouldn't need these running on each individual machine? Any other ideas for putting this thing to use?