Linux is difficult
...not in my experience or for my users. Most don't even know they are using it. For the average non-techie going from XP to Vista is as different as going from XP to Ubuntu.
I don't know what George has done, but my users found out of the box installation of OpenOffice easy and without fault. The only time I've got stuck with dependencies is when I try and use a more cutting edge repository. Then again if I use cutting edge windows software I can come undone.