http://cdfx.penguins-on-hudson.com/2010/01/20/automount-removable-devices-on-ubuntu-servers/
http://usbmount.alioth.debian.org/
https://help.ubuntu.com/community/Mount/USB#Automounting%20%28Ubuntu%20Server%29
what is the difference between udev automount of usbmount (why should I choose one over the other method).