Marcus, I am using the ajax to serve "variable" content to human users only after the page has loaded and user has taken some action to sort or filter, and I specifically do not want that content indexed. BTW, regarding Google indexing ajax content, I am not a fan of using G's proprietary hashbang methodology. If you want the content indexed, then load it with the page. Any content loaded through ajax should be for human consumption only. So, back to the question, about link juice...
Thx