In the past few years, we have covered plenty of neat telepresence robots here. The Parallaxy telepresence robot kit is also worth a look. It is designed for the letsrobot.tv open telepresence platform and comes with Internet control. Parallaxy comes with everything you need to get started, including a Raspberry Pi, speaker, and Logitech webcam.
You can always modify the chassis to create custom robots. This telepresence robot is available for $379.