Where to find nature objects with few polygons

Hey guys,

I need trees, stones, grass etc models for my game but the most important thing is: they should look quite nice and have only very few triangles < 300…does anyone know where I can find them?

I tried 3dcafe.com but the models have thousands of polygons…



http://arbaro.sourceforge.net/  tree generator java based

off the top of my head

if you have modeller max, maya maybe blender noise filter on a sphere produce good look rocks