Two good pages with pictorials on a cam swap in case you are thinking of doing one.
Page 1
http://www.bikernet.com/jims/jimstech01.asp
Page 2
http://www.bikernet.com/jims/jimstech02.asp
Page 1
http://www.bikernet.com/jims/jimstech01.asp
Page 2
http://www.bikernet.com/jims/jimstech02.asp