For me, the Analog Dog Hair has the more perfect curly hairs of Second Life, bringing natural and flexy hairstyles that always let me broke, but satisfied, hehe. The two latest releases are beautiful afro hairstyles: Madison is revived and updated and now we have Madison 2, flowing and natural afro hair inspired in the epic mermaid from the classic 80's movie "Splash" (OMG, I love this movie/mermaid, this hair is a dream comming true *O*). Ariel is basic and casual, bringing a scripted hair clip so you can easuly choose any color to match your look (the back attachment and hair clip are separated, so you can wear it when you want). So, check the demos at the store and be impressed by the quality!
Oh, a last advice: some older hairstyles are only L$10 (look for them, hehe) and at the sale section, you find amazing hair for only L$100 or L$150.
Analog Dog Hair - Madison 2 *NEW*
Analog Dog Hair - Ariel *NEW*