I've been Harry Dent (http://www.hsdent.com/ ) and his theories for couple of years now and recently subscribed to his newsletter online. Pretty interesting stuff on "boomer peak spending" that is driving this stock market boom. However, his targets for DOW 36-40K and Nasdaq 12-14K by 2010 seem a little far fetched given both 2005 and 2006 have been very lame years so far.
He expects the markets to take off after the 4 year cycle low this october.