Buying shipped eggs can be a huge waste in my opinion, just a heads up!
Not always, but a lot of times shipping is harsh on eggs. So be prepared if none or only 1 or 2 hatch. And for $30-50 per dozen, with few to hatch, it can be upsetting if youre especting something great.
That being said...
http://cackhatchery.com has always provided me with healthy, well laying, and beautiful stock. I think my local feed store buys from Ideal hatchery, their stock was also strong and hardy for me.
Ive bought directly from show/heritage breeders, way more expensive but you get really nice quality...