disk volumes under "places" in file manager

[R Skinner]

I've been advised to try this list for these specifics, and as it is 
only transient I'm not subscribed; so if you could ensure to cc me in 
the replies it would be appreciated.

I've searched high and low to find an answer to this, but just keep 
getting wound up in knots. I would like to know how to add "places" to 
the sidebar of the file manager (nautilus or whatever)- how is it done? 
Is there a config file for it like bookmarks? A dbus call? GConf?

However it is done it is very obscure- but then most things are with 
this DE.

Cheers