i know there is a few on here (dj`s that is) so how hard is it?

after d/l`ing escort-ian`s trance mix yesterday (which was quality by the way ) i wondered if it was somthing i could get into and enjoy doing. i dont mean doing it in clubs etc that would take years i suppose but doing it for myself as a hobby/interest?

take it its all cd and mp3 mixing these days? 1210`s are redundant?

what price would a sensible setup cost? what do i need?
how hard is it to beat match?
how hard is it to do stuff like mix songs/ put diffrent vocals over other tunes etc?