I have used YaBB for sometime now and have found it very easy to set up and use and it is free! It can be found
here.
If you are going to need to buy a domain name and webspace then some come with a product called cPanel included. cPanel has a feature that with a couple of clicks will let you set up a forum either phpBB or YaBB.
If you need any help with setting it all up BRL just drop me a PM and I will do all I can to assist you.
