My current favorite is Shea Moisture (Moisture Retention). I've found many sulfate-free shampoos to feel very drying (as in my weekly sulfate shampoo leaves my hair feeling softer than most low-poos). This one cleans my scalp and roots well but doesn't leave my hair feeling stripped.

Modified CG since 11/5/11
CLEANSE: CJ Daily Fix, DevaCare No-Poo, CHS Treatment Shampoo
RO: SS Caitlin's Conditioner, CJ Beauticurls Strengthening
LI: SS Repairing Protein Treatment, CHS Silk Leave-In
STYLE: Re:Coil, Curl Keeper, Deva Ultra Defining Gel, Curls Rock Amplifier,Sweet Curls Elixirs Okra Gel and Hard Hold Gel, SS Curl Enhancing Jelly and Firm Hold Gel