Thought this might again be an interesting way by which Lift is created after the Coanda effect
http://www.rcgroups.com/forums/showthread.php?t=1004716&highlight=magnus+effect
Especially these VDO's:
http://www.youtube.com/watch?v=rkT4-Q7LGPQ
http://www.youtube.com/watch?v=uscW9RLcBpw
Sai
http://www.youtube.com/watch?v=asJqvrikQSA