I'm on my first grow ever. I'm using the GH Flora three part nutes in an Ebb and Flow system with Coco and hydroton media. I've found the GH line very easy to use, and I really like their online calculator:
GENERAL HYDROPONICS
This is my first grow and I have had zero nutrient issues. I started with very low ppm's to start, and am now using the full strength schedule. I think my plants are coming along well, and hope to net around a half an ounce per plant.
Check out my grow journal to see if it's a program you'd be interested in.
Good luck with your grow!