Hi All,
if you setup a MODBUS you can try our HMI-Software VisBee.
Actually we are working on the driver to communicate between ARDUINO and our visualization Software VisBee.
MODBUS (and others) is already running.
It’s a fully loaded Visualization system for HMI and SCADA.
You can download the Software without any restrictions at www.visbee.de (english version)
The is a extra version for ARDUINO - Fans 
(VisBee-light)
The ARDUINO-driver will be available during march/april 2013.
If you have further questions let me know.....
BR,
Chris