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Prof. Ng's ML course was a real eye opener. It wasn't hard but was very practical. Then when you need more theoretical background you can watch recordings of his stanford ML class.

Yes, lack of SNI support in some browsers could pose a problem in wide adaptation if it keeps SSL mandatory.

I don't think there's any need to worry. I was very much interested in Machine Learning and took Stanford course last year and prof. Andre Ng made it look so easy with focusing on practical aspect. Now I have a grasp on how things work practically it's easy to get going with the theoretical aspect (with mostly maths) and following CS229 full video set covering the original course.

Anyway good luck!

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