Dodge's Abaco Guide is essential, but it should be noted that Dozier's Waterway Guide to the Bahamas has a section over 70 pages on the Abacos, which is quite good, as are all guides in the Waterway series.

Disclosure... I sell them both, but had to mention it. <img src="http://www.traveltalkonline.com/forums/images/graemlins/Cool.gif" alt="" />