My First Trainz Set screenshots

It is a nice game that provides you with a model railroad inside a fully 3D app.
My First Trainz Set 1.0 : Main Window
My First Trainz Set 1.0 : Main Window

Alternative downloads

Tracks
rating

It lets you control the music being played within iTunes from the Menu Bar.

Set Icon
Free
rating

This application lets you change the icon of your Mac drives.

CB Model Pro
rating

CB Model was built around the idea that surfaces should be manipulated directly.