Below are links provided by Frank Kutka regarding no-till gardening.  

The first deals with soil health and water infiltration, the second with weed control, and the third with soil health and fertility:

http://www.youtube.com/watch?v=7FEIP4Wwufo

http://www.youtube.com/watch?v=UDl-ZPK3HH4

http://www.youtube.com/watch?v=wffoeYUFK7k

Vidoe links on Mulch Gardening:

No-till Gardening with Mulch (1) http://www.youtube.com/watch?v=7FEIP4Wwufo

No-till Gardening with Mulch (2) http://www.youtube.com/watch?v=UDl-ZPK3HH4

No-till Gardening with Mulch (3) http://www.youtube.com/watch?v=wffoeYUFK7k

No-till Gardening with Mulch (4) http://www.youtube.com/watch?v=g5ZCxKB9d3k