Hey Joe - here's a couple simple "servo slow" devices you can use on the output of a sequencer to get the action you need:

http://www.dionysusdesign.com/produc...products_id=41

http://www.hobby-lobby.com/hookup.htm

http://www.smservices.net/acatalog/On_Board_Units.html

http://balsamart.co.uk/upgrade/index...oducts_id=2244

http://www.emsjomar.com/SearchResult.aspx?KeyWords=slow

Barry