[Closed] ipods, itunes, kids - how to setup ?

currently we have 3 ipods all which we connect to house pc which has itunes and all our music library. Kids (10 and 6) shortly getting ipod Touch and they will be wanting to download their own stuff etc.

How do I set up the Touch ? do I asssociate it to the house pc and main itunes, meaning they will want password etc for downloads, or can I set them up their own itunes ? Presume if I do the latter then the main pc won't recognise the Touch etc ?

confused luddite here 😳