Dropbox on Ubuntu Linux

Dropbox's instructions to install on Ubuntu are pretty straightforward:

https://www.dropbox.com/downloading?os=lnx

But they forget to tell you that you need to also update your /etc/apt/sources.list too!

sudo vi /etc/apt/sources.list

deb http://linux.getdropbox.com/ubuntu lucid main
deb-src http://linux.getdropbox.com/ubuntu lucid main

sudo apt-get update
sudo apt-get upgrade nautilus-dropbox
sudo apt-key adv --keyserver pgp.mit.edu --recv-keys 5044912E

Roger