>I have just loaded .net and am wondering are there any good articles re setting up my first demo 'Hello world' app. Reaaly, at this stage, I'm just looking for a way around .net and maybe introduction to c #

Here are two sets of videos, neither are free.

http://www.levelextreme.com/wconnect/wc.dll?FournierTransformation~2,9,4,6
http://www.learnvisualstudio.net

I used the bottom one to prepare for a VS.NET class. I liked the videos because they show the actual clicks needed to do something. In an article they may gloss over these things assuming you know them.

Here are some intro articles dug from the UT articles section:
http://www.dotnetcoders.com/web/Articles/ShowArticle.aspx?article=11
http://www.cfdev.com/code_samples/code.cfm/CodeID/38/c/C__Hello_World
http://csharpcomputing.com/Tutorials/Lesson1.htm
http://www.softsteel.co.uk/tutorials/cSharp/lesson1.html

Quickstarts
http://samples.gotdotnet.com/quickstart/