Dust collection hood for a miter saw

[Woodcarver]

I've set up a dust collection system for my shop.  The Thein baffle is part of the system and I am very pleased with the performance.  However I don't have a good set up for my miter saw.  Does anyone have plans for a good hood.  I found this video on youtube.  http://www.youtube.com/watch?v=mRCgwTqJhqM  Looks good but I can't find plans.