Remotely Image iMacs

Do any of you know a way to remotely start a NetInstall to an iMac? I have System Image Utility and Apple Remote Desktop. Can this be done?

It seems that I have to actually go to the client computer, hold the letter "N", and initiate the image from the remote computer. This is very ineffecient since the iMacs are 15 miles away from me and the server.

Use the startup disc option in System Preferences. Netinstall and Netboot images should show up there if you are using a the same subnet and bonjour services are running.

Be sure that the Netboot service has a default image selected, use ARD to select the start up disc.