The pronunciation web I couldn't find in class today...

http://www.bbc.co.uk/worldservice/learningenglish/grammar/pron/sounds/

Here's an extra couple of golden vids coming from the realm of acting...

(minute 26 onwards)
https://www.youtube.com/watch?v=_QgRHOdeApA

(minute 52 onwards)
https://www.youtube.com/watch?v=WbIebgLyC0M