I'm way too cheap to spend big bucks on higher end hair care products so I can't vouch for any unless I've gotten samples of them to try out.
But the best shampoo and conditioner that I've found drugstore wise has got to be L'oreal Vive Pro Pearl kind, I think its called? It's in the pink bottle. I have yet to actually buy both the shampoo and conditioner, because I already have so many bottles of shampoo laying around my bathroom that aren't even nearly used up and someone else in the house just seems to keep opening up new bottles grrrr! But I did sign up online for a free sample of it and tried it 2 3 times and each time it gave me the same results consistently. I had such gorgeous shiny, soft, I want to run my fingers through it all day hair. And it also made my thick long hair air dry alot faster too. I will say that the deep conditioner in that line SUCKS though, as with all deep conditioners that I've tried. So just get the reg. conditioner and you'll be good =]
I also am in love with the $1 tiny bottles of hot oil treatments (the olive oil one preferably) from sally's beauty supply. Again, my hair was just so nice and lovely to the touch from it and one bottle can even give me 2 uses which is amazing since I have so much hair.