This build will help you if you need a good leveling build for the Smuggler Scoundrel for patch 1.2
This post will give you a decent leveling build and PVP build for the Trooper Commando in 1.3
This is a decent leveling build for the Sith Juggernaut in SWTOR that is optimized for patch 1.3 and you will also get a full list of rotations to use with it.
This post will give you a build for the Jedi Sentinel in SWTOR for the new 1.3 patch and also a full list of rotations to go with it.