Welcome to the Forum, Paul
You'll find a lot of Video Tutorials by Reallusion & Forum Members.
However the question of "But where do I start?" still remains.
IMO, the best way to start (Others may differ), is to go through Stuckon3D's Free Video Tutorials, which cover iClone Basics. These are based on iClone 4, which don't include the many new Features in iC5.
Warlord's Purchase Tutorial Book also based on iC4 but with iC5 new Features added, goes into the basics in more depth, with his own Content provided for individual Project-based Tutorials.
Mark's advanced Free Tutorials cover specific "How do I do this" requests, in a User friendly manner.
TUTORIALS:
1) Stuckon3D
Here; https://forum.reallusion.com/Topic31003-33-1.aspx
2) Warlord:
Here; http://www.iclonebeginnersguide.com/
3) Mark's advanced Free Tutorials:
Here;
http://www.youtube.com/playlist?list=PLB19A9CF2BCAE5FAF
4) Reallusion iC5 Video Tutorials
Here; http://www.reallusion.com/iclone/iclone_training.aspx
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