RuralLink Ltd (yes, I work for them) does what you want, linux-based wireless network management. Get in touch with us at http://www.rurallink.co.nz/contact-us

There's not a lot of info about that side of things on the website, but if you contact us we'll be happy to chat - and don't worry, we're all techs, there's no sales droids here.

Cheers,

Scott.

Just start typing the file path and a "Open Location" dialog will appear - it even has autocomplete... Or, if you're scared, press Ctrl-L first. This also works in Nautilus.