Recommended plugin for side navigation

Hi

Can anyone recommend a good side navigation plugin which will complement the main drop down global navigation within wordpress?

For example in my page hierarchy on for example the ‘About Us’ pages I would like a sidebar navigation containing the pages within the About Us section/hierarchy and also have this menu display on each of the about us pages

Same goes for the other pages for example on the ‘Services’ pages the sidebar navigation would only display the relevant pages within the services section.

I have installed a plugin Advanced Menu Widget to provide navigation but I cant get this working as I would have to create a widget placeholder manually for every page in the website, is there a way of doing this dynamically?