Right now we are using (around) 3x3 terrain for Tourney's but for General Play we have been using the players discretion.
I like the idea of moiving through neat looking terrain, so I have been trying to stay away from Standard demensions. Jason is working on some cool stuff that I'll have up soon.
Also, as a side note, we have been playing a "killing Fields" senario with 3 seperate players fielding an Army. In that case we have a fixed point in the center and measure back from that to create the 3 deployment zones in a circular deployment.
In the Killing Fields, its all about the Allianances :)
I can't wait to see your stuff!