Bookends is as nice program and I purchased it a few months ago. But I haven't seemed to make use of all its additional features since I bought it (while I have continued to use endnote, as all my manuscripts are collaborative and the fellow authors are PC endnote users)
Due to a recent financial stricture, I am willing to transfer my bookends license to an aspiring customer. If anyone would like to get my copy of bookends please make me an offer at thiru21 at gmail dot com. Thanks!