I've got thick course and slightly wavy hair and struggled with my hair for years until I decided to spend a bit more and use salon products. I swear by them now and would not use anything else. My hair is silky smooth and really light.
I personally use TIGI or Label M and I buy it on the net (Ebay's excellent) so it's about 1/2 the price of the salon.
I now get that lovely hair feeling that you have when you leave the hair dressers.
I've tried most shampoos and conditioners in the shops including the Aussie range and yes Aussie is definitely the best of the supermarket range but still no where near as good as salon products.
good luck in finding the perfect range for your hair :o)