ok, so ive got my 95 3.8

i kinda like to put a small cam in it, just to do it, but i dont want to spend too much money or effort. obviously im not trying to make some kind of sleeper beast, this is my DD, i just wanna do it.

so what im asking first of all, how the hell do i get a cam for a V6, and secondly, can i jsut sawp cams, or do i have to get new lifters, rockers, etc. and on top of that, would i need to tune it? i know thats way too expensive. another thing is that i have no idea how to choose a cam.