Well, first you may want to try a clarifying wash to get any residue out of your hair that could be making it seem more lackluster and dull. You can find more info on clarifying in the library, or someone here may be able to tell you how they do a 'baking soda wash'. Then you will probably want to strengthen and moisturize right out of the gate. Plan on doing some type of treatment at least once a week for a while!
Also, some ladies here have discovered that the lathering agents in most commercial shampoos dry their hair out even more and so have switched brands & even made their own from stuff in their kitchens. Others have found that silicone-based products make their hair more tangle-prone, but others have found that it helps, so you may want to keep an eye on that as well!
Hopefully someone here can recommend a strengthening treatment - something with protein in it - that you can do. I haven't done any of those, so I can't help you there.
Moisturizing is one of the easiest things to do - you can go simple, and just oil your hair down really well and put it in a warm towel for an hour, or you can try making some of the great recipes from the Library. We've had some really funny avocado-related stories on here.
A lot of us here have figured out what works for our hair by simple trial and error - don't be afraid to experiment, because most of the stuff we experiment with won't hurt your hair...it just may not be 'right' for it! And you may end up trying something no one has thought of, and we LOVE product reviews around here!
Good luck!

Hairy facts of life - 27" long, type 2a C iii
wash as necessary with my recipe: castile soap, jojoba oil, seaweed extract, rosemary & ylang ylang essential oil
ACV rinse
oil nightly with coconut oil or shea butter
trying out AO Island naturals for a while!
two braids for bed
23" as of Jun'07/27/going for waist (apprx31")