For a first-time hatch, I would recommend getting eggs you don't really care about. I know that seems counter-intuitive, but incubating and hatching is like learning a fine motor skill - it takes a little experience to really get it right. When you are doing the learning/experimenting-with-what-works, on expensive eggs you are emotionally invested in, it can be very discouraging to get to the end and have nothing hatch. I have a friend who bought a
Brinsea - usually a good choice for someone starting out - and was trying to hatch her own eggs for months without success. It turned out the thermostat in the incubator was off by 5 degrees so although development started, the eggs were too hot for too long each time and nothing fully developed. Those are the kinds of wrinkles it is best to iron out with eggs you aren't so invested in, rather than eggs that cost you $70 shipped.
If you have a rooster of your own, the best place to start is to hatch some of your own eggs, even if they are barnyard mutts. Having not had to travel anywhere, and being fresh, you will get a better hatch out of your own eggs.
The next best choice is to place an ad on Craigslist for some local fertile eggs that you can pick up. Picking them up allows you to handle them very carefully getting them home. When someone contacts you, ask them to collect the eggs and place them big end up in an egg carton.
If you order eggs to be shipped in, you will be dealing with eggs that may have been handled roughly by the USPS prior to your getting them. If the air sacs or yolks have been affected, those eggs will be much more challenging to hatch. Many people have had a 0% hatch from shipped eggs - even experienced hatchers who know their incubators and can trust that the thermometer and hygrometer are reading accurately.