I use the 1 GB Clip for podcasts, language and meditation tapes. The 1 GB Clip is enough for me as I load new podcasts weekly and only keep the last couple of weeks worth on there. This uses about 10 - 20 % of the capacity for me. I guess the real question for you is the size of the audiobooks.
The Clip does have bookmarks but it’s by file, not by book. If your audiobook is divided into chapters (seperate files) you will have to remember which chapter you were on. There has been some complaints on the forum about this.
