This is my home-made Storm Trooper squad, which I made from various bits from my infantry sets, parts from the Cadian Command Squads I have, the Guardsmen, and Heavy Weapons Squads.
Since GW hasn't yet released a plastic Storm Trooper set, I made my own. They were surprisingly easy (and fun) to make, and they look pretty good, if I do say so myself.
This particular squad is about 125 points worth, my heavy infantry killing squad.
The Citadel colours I used were; Codex Grey, Shadow Grey, Dwarven Bronze, Burnished Gold, Gore Red, Chaos Black, Tin Bitz, and Chainmail.