I have always had great success with Eqyss and Kiehls products.
I recently got shampoo/conditioner from brendah
wwwwebstartscomFurBabiesPetPlace that I really liked and they are very light so they may help with the greasiness... you can order small trial sizes from her which is good if you just want to try it out and not waste a lot of money on the larger sizes.
Good Luck.