Well, the Hornblower series is my second favorite for this period of naval novel. What amazes me about O'Brian is that every time I re-read his books I come across even more intriguing things. At least in his earlier books I think he was having a thoroughly enjoyable time writing and researching. The combination of Aubrey and Maturin makes for a more interesting read, as they are very different characters and most of the time, best friends. I also agree that the A&E series doesn't do the Forrester books justice, although they look better than other movies of this period that I've seen.

Finally, spare yourself the pain of reading William Bentley's "Jan Needle." It deserves to spin three times round and sink to the bottom of some septic body of water.
Vast heaving!