www.naturallycurly.com
OMG, I love that web site!! They also reference the book "Curly Girl," which I see that another poster mentions here. I've been fighting with my curly hair since I was a little girl & those two helped me so much! I'm actually still fighting a frizz issue, but I have a 17-month-old baby so I have this weird new growth thing going on. Other than that, my hair has never been better!
I think you'll probably need to experiment with some products to see what works best for YOUR hair. Right now I'm using Suave Naturals conditioners in place of shampoo (they have enough detergents in them--as do most conditioners!-- to get your hair clean w/o drying it out) and then I use the generic version (from Sally Beauty Supply) of Matrix Biolage Conditioning Balm. Then Aussie Sun-Touched Shine gel for scrunching.
Aside from finding the products that work best for your hair (and I am definitely in favor of avoiding dimethicone even though it can be hard to do) my best tips are: 1) rinse hair w/cold water after your shower 2) after cold rinse DON'T wring it out, only *scrunch* the water out and 3) don't use a regular towel to dry your hair, squeeze excess water out using an old t-shirt. Those 3 steps alone will probably make a big difference in terms of frizz!
Best of luck!