First steps learning ROS

The tutorial seams like a good place to start:

Create overlay in ~/fuerte_workspace

rosws init ~/fuerte_workspace /opt/ros/fuerte

Use overlay

source ~/fuerte_workspace/setup.bash

Create sandbox

mkdir ~/fuerte_workspace/sandbox
rosws set ~/fuerte_workspace/sandbox

Interactive markers

http://www.ros.org/wiki/rviz/Tutorials/Interactive%20Markers%3A%20Getting%20Started

# One terminal
roscore

# Second terminal
rosrun interactive_marker_tutorials basic_controls

# Third terminal
rosrun rviz rviz

Turtle simulator

I'm not sure this is needed

rosdep install turtle_tf rviz
rosmake turtle_tf rviz

Run the demo

roslaunch turtle_tf turtle_tf_demo.launch