Step 1. Pick Alistar.
If you don't have him, get him here.
Step 2. Runes/masteries who cares, but if you want to know, I run armor pen reds/quints, armor yellows, and mres/level blues and I go 21/9/0
Step 3. When game starts, buy Brut, get cash, so you end up with Brut, Berzerkers, and a Sheen.
Step 4. Get more money. Get trinity force + youmouus.
Step 5. Win. No one can fight you 1v1. I've even 2v1'd easily.
If you have any stealth champ problems (Akali was an annoyance) just grab the oracle elixir.
This is the best way to play dominion.
Extra step: http://www.youtube.com/watch?v=xx86CxKYtg0 play this on loop.