Don't tell me you're a Don, Dog!
And, as Swash said, most MMOs that are any GOOD cost. The best that I know of that is F2P is POTBS, or maybe Gates of Andaron? I've never played it, but it is F2P and some of the [sarc]knowledgeable gurus of the Internet[/sarc] say that it is pretty good to be F2P. Just looks like a WoW clone but free to me. But still, why not try it if you like that sort of thing?
A few Youtube videos can point you in the right direction, but don't rely on them.