Hi guys,
here's my output using Marcel's Tree Generator. It's awesome! You need to make sure you create a base and a target group in your model, then open it in an action. Right click then go to Wizard and TreeeZ. Caplow, instant tree. You will want to experiment with your base and target shapes. I've found that a small circular base and a large grid target works very well. Here are some screen-shots.
Frank Silas
http://www.franksilas.com