Agree with Ankesh, both are terrific marketers, buy em both...when you can afford it.
In the meantime, this post gives you as much of a jump start as either of those courses:
http://www.copywritersboard.com/copy...r-starter.html
And this site gives you plenty of things to look at:
www.infomarketingblog.com
Archives of Warrior Forum, copywritersboard and even here at sowpub provide you with a lot of easy to apply material for writing.
Start with Dean Jackson post at copywritersboard.
Gordon Jay Alexander