I just learned how to do socks also...I used Charlene Schurch's Sensational Knitted Socks book to learn. I did the class sock. I did two of them and they are both hilarious...you can tell they are socks but I made so many mistakes. I am very proud of them! It was a great learning experience and I think I know where I went wrong so I have started a new pair.
Fair Isle is a little too ambitious to me.
I'm barely passed the scarf and hat stage!