RE: Doing it on your own
Good advice from bigcountry. I learned to do all of my setup tinkering on an old bow of mine that I got in 1986, that I had put away for fifteen years (about how long I was out of bowhunting). I wasn't scared of making mistakes on it, and figured out if you are willing to spend the time to tinker, and have the patience, subsequently it gets easier.
As far as fletching goes, it isn't real hard. I bought a Grayling fletching jig pretty cheap a few years ago and still use it. Just remember to clean your shafts off real well (unless they are new bare shafts) and make sure to use enough adhesive to not have any gaps between your vane/feather and the shaft. And, I also put a drop of adhesive on the front of the vane and the back after they are in place.