Well, first you're going to need to get some Linux distro's. Download all of them, they're going to take alot of time. No it will not be free, you're still paying for your PC, etc. many IPS's don't allow webserver on their lines, try calling them before you attempt to change your PC into a webserver. No, you shouldn't use the computer, and you're going to need to always keep the CPU on, at all times or all your hosted accounts, or whatever you're doing will be temp. down. If you hadn't attempt resellers yet, I would try that before so you get the hang of it. Then make your way up from there.