Using Browser window to display sensor values in realtime The title pretty much says it all:

What would be the most obvious way to setup the Arduino (shields?), the Sketch (libraries?) and PC (webserver, ajax, plain html?) so that I get the following system working:


I open some page in a browser. The page has some labels/fields/values;
I power up Arduino, which is connected to some sensors (or even potentiometers);
The sensor values display keep being constantly updated in the page, with a sensible refresh rate (the fastest as possible, as to control some browser-based game for example);


The fundamental idea here is to use the Browser, and not some other GUI toolkit, or Processing, or the command line.
The most obvious way? Not what is the best way? It is a subjective question. The most obvious way would be to do it in a way you know how to. I am sure there are at least 20 ways to do this.

The way I know, and that I would do it is write a PC service that establishes serial communications with the Arduino, transfers data using JSON, and presents a web server I could connect TCP to.  Knowing C# and using existing code I have, it would take less than 15 minutes.