Standalone Datacollecting Webserver

Well at the moment i am using the Arduino to display the server, but have been looking on the form and thinking of using an external host, My plan is to have the sensors graphed in real time on the server with a datalogger with a RTC, my goal would be to have my server to have graphics like this example http://www.cs.helsinki.fi/u/ljlukkar/weatherstation
with 3/4 sensors been on the graph