Hi and congrats on your purchase.
This is really nice unit.
There aren't any videos or seminars but there is a forum in this unit ;-)
Below I have listed two very good sites to cheek into for this.
And I can also help you when you tun into a particular question;-)
Just let me know.
Please visit: http://raymarine.ning.com/forum
This one is for support and service should you need that as well.
I have a similar model and also will be happy to help you as you have questions.
Please rate my service kindly at this time and then you can also contact me anytime by replying to this message.
Your question will not close when you rate as the site says. That is old and needs to be changed lol;-)