I'm trying to make a new campaign. I am thinking of level 3 or 4 for the start. Anyone know any good campaigns that start around that level range that I could buy?
The Paizo APs are all good. They are 6 books that go from level 1 to ~15. In most, if not all, cases, book 1 takes the players from 1 to about level 4. I know with Carrion Crown, you could easily skip book one and start at 2 with a minimal amount of fiddling to ensure primary story line remains present.
Same goes for Serpents Skull I guess, just run it without the castaway-plot of the first book, make sure that the players get into the story without it, and the level range should be just about right.
I've read that it takes more time than usual to mod though (wouldn't know, only ever played it) so keep that in mind.