The designs are quaint and with the right mix of software, can still be quite a usable computer. Most applications are on the internet (and I refrain from using the word "cloud").
So the first thing to do to make this computer usable is to get the "latest" and "optimised" browser which I downloaded from http://rpm-mozilla.org.uk
If Quicktime isn't able to play a media file, I like VLC and you can still get a PPC version from their download page. Select the Universal version.
Remote Desktop Client
To use other applications and get more power, we probably have to connect to our main system.
We will need a remote desktop tool for that. We could use the standard VNC to another machine on the home network which is great. This feature is available from finder, you need to enable the "Connect" button with a right click on the top of the Finder window. Select "Customize Toolbar". If you don't have a right click, it's "Ctrl - click". Add the "Connect" button to the menu.
To connect to a VNC services type in "vnc://
Mapping a Network Storage - We can also use this to map to our NAS or file shares by "smb://
However if the server we want to access is far away and accessible via ssh, we can use use No Machine Client, the requirement is that you need X11 for it to work. (refer below)
Useful Utilities for Geeks