I'm thinking FreeBSD but I'd like your opinions here. It'll be used for a number of things, private hosting from clients who want to pay me pocket money and I have plenty of friends who will pay me a fiver or so a month to keep their servers up on my system. I could also use it to store my own data that I'd like to store such as.. movies for example that I have pirated? Personal things I should think shall be kept within a jailed environment.

Please also state the specifications of the machine I should go for along with other ideas as to how it may benefit me.