When I create a plane it comes out 10x10 (100 polygon plane) w/ no option to change that to say 50x50 (2500 polygon plane). I assume there's an easy way of doing this but haven't found one. I can import a plane from 3ds max each time but that's a pain to do everytime for something seemingly pedestrian.
I made a script a bit back to do exactly that:
http://www.unifycommunity.com/wiki/index.php?title=CreatePlane
It lets you set a width, height, and the amount of polys for both