Simon Royal wrote: [...]
Is there any advice or stories people would like to share with a Mac to Ubuntu switcher?
Give GNUstep a try. It's descended from a common ancestor with Mac OS X although I've no idea what state it is in in the Gnome-centric Ubuntu.
One thing you won't miss is the horrible mess of launchctl. ;-)
I have an old Epson Stylus Photo 1200 which I can't find any reference to but suppose it would require CUPS or Gutenprint to work possibly.
http://www.linuxprinting.org/ should tell you in far too much detail.
Could you set a line wrap or format=flowed on your emails, please? That'd make it easier to read any other questions.
Good luck