Love the guide, I'd just like to add my opinion to your starting item options:
Depending on who I think I will be facing I tend to start with either Doran's Ring, Sapphire Crystal and 2 hp pots, or Boots of Speed and 3 hp pots. I choose the Ring if I feel I will absolutely dominate, such as against an Ashe. I choose the Sapphire Crystal and 2 hp pots if I feel I might be out harassed, such as by a Sivir, as the hp pots let me lane longer and the crystal makes my first return to the fountain 400g cheaper. Lastly I take Boots and 3 hp pots against heavy skill shot based champions, such as Karthus, Ezreal, or Urgot. The speed boost plus the speed masteries can make harassing me completely not worth it, plus my first b saves 350g.

Try my other 2 out sometime.