I use to use it too, but it seemed to be a pain in the YAST some times to add
repos. However the hardware detection is just awesome. Any hoo. Ubuntu wiki
should be your best friend. For printing

https://wiki.ubuntu.com/Home?action=fullsearch&context=180&value=print&titlesear\
ch=Titles

Networking, please go into further detail on that.
https://help.ubuntu.com/community/InternetAndNetworking

Here more useful links to get the rest on your questions answered. Some have
vids.

http://www.linuxreality.com/
http://screencasts.ubuntu.com/
http://ubuntuclips.org/
www.unix-tutorials.com/tutorials.php?os=Ubuntu
http://www.debian.org/