Dear evangelist,

Most of the names you mentioned (Copeland, Price, etc.) are adherents of what is called the "Word-Faith" doctrine or the "prosperity gospel". One reasonably short overview of the problems with their beliefs can be found here:

http://www.watchman.org/profile/wordpro.htm

There are probably others here (as Robin) who have more background than I do with them, but from what I have seen this movement exalts man and weakens our view of God. Clete Hux, the author of the article in my link above, gives a pretty fair look at some of the problems with the "Word-Faith" teachings.

Theo