Hair care blues

Ok, ^this^ picture may be a tad bit of exaggeration, but I feel like it's close. 

I'm getting tired of the dull sheen to my hair, the slow growth, dandruff, and the frizz. So I'm finally making a determination to put a stop to it. I want long, beautiful, shiny, silky, healthy hair. 

I've been looking for most of the morning for information, and getting frustrated. A lot of different websites contradict each other, so how am I supposed to know who's right? Many websites tell you that you need natural ingredients, but they don't say which ones. Some even say that some shampoo products are ok while others are not. But they don't point out which are good and which to throw the window. I also keep seeing the words "dry shampoo" but I don't know what it means, where to find it, or even what it looks like. 

I saw a bottle of shampoo on a website that looked like this. 

I then saw it at Walmart, and since they had several different scents, I got the Japanese Cherry Blossom one. I only used it once, but I was amazed at how soft it made my hair, and how much longer it stayed clean than usual. But it's expensive, so I'm only using it twice a week. 

I wish I had a list of good and bad products, including pictures of the brands and what to look for. I did find a few helpful articles like this one for curly hair and this blog showed day by day what she went through and how her hair reacted. There's lots of great little nuggets of information here and there, I guess the lazy side of me would like them all in one easy place with step-by-step instructions. I know about the Curly Girl book, and I'm considering getting it. I'm just seeing how much free information I can find first before buying it. 

Do any of you have tips that I could try that have worked for you, including where you found the products?