Yes guy's. Sorry to be so thick. It is channel switching that I meant, not bandwidth. I know that channels can be changed on the router to avoid clashes, but the programs that I was thinking of when installed would show details of your own and any others on or near to your own so allowing you to avoid having to many people sharing. Sorry that I might seem a little vague but I'm just not sure how to explain in computer speak as it were.
Ooo... that looks like a very useful tool. Thanks! +repThis should get you the info you want http://www.metageek.net/products/inssider/
Glad to be of help