willmott is the best place I've seen for quant/finance discussion:
http://www.wilmott.com/
Nb. has a (required) delayed login before you can post. Very little (if any) noise in the comments - makes freakonomics look like jerry springer.
True ease of writing comes from art, not chance;
As he moves best who learns the steps of dance;
'Tis not enough no harshness cause offence;
The sound must seem an echo of the sense.
Alexander Pope, early hacker & investor (in the south sea bubble)
1) good - it's a vaguely uplifting vid
2) yes - it isn't asking me for anything & makes me curious to hear more
3) I'd need more specifics as utnick mentioned
4) minor irritation when the soundtrack loop starts, and there's no clear signal that the presentation is over.