ascendedmind,ZI have a special running at the moment on a PR 4 site. I am charging $120 fpr a full year if that interests you.
You can also read Kelvin Brown's offer "4 to 1 link exchange, you get the 4" here:
http://www.dombom.com/cgi-bin/dcforum/dcboard.cgi?az=show_thread&om=41&forum=DCForumID42
Btw, you might want to read some of the threads on the forums to see if they have some other things in them that will help you.
Mary