Here you will find resources to enhance your 350 games or to make running tournaments easier.
Army Construction Rules
Rules for construction can be found here. Here is a video of working through the Master Unit List (MUL) found at http://masterunitlist.info in creating a 350 army that follows the 350 Construction rules. You can find that video here.
Here is a video on a quick and easy way of making hills for your table.
Cryodex is the tournament software that was created by Chico Brown. This software makes if extremely easy for you to run any number of people in your tournament. This software will track wins/losses, objectives, and MOV. Other fun items that are tracked are SoS (Strength of Schedule) and byes.
You can download the jar file from here