I would appreciate any suggestions on how to proceed after completing the Free Esperanto Course.
Any books, web sites, computer programs, DVDs, etc. that you think might be particularly helpful?
I am thinking about the correspondence course from ELNA (using Jen Nia Mondo) - anyone have any opinions about that material and/or the ELNA correspondence course version of it?
Any help would be appreciated.
Gene

If you have a good grip on the grammar, and you only lack vocabulary, then read, read, read, and try writing, and speaking if possible. Find a penpal or more than one and establish a correspondence in esperanto.

If your grammar is still shaky and you have specific questions then this is a good place to ask them.

Most basic courses give you all you need to try out and practice the language by yourself. The rest should come through actual use, IMO. Constant exercise is key to become a fluent speaker.

If you manage to find a copy, I think that "Paŝoj al plena posedo" could be a good book to improve your knowledge of Esperanto.

I don't personally like Jen Nia Mondo that much, but it has some big fans. It isn't really my learning style, but you might like it. It's a bit more conversationally-based than other courses.

The free postal course was the only one I ever did. All other learning came from practicing with penpals, as mnlg mentioned (highly recommended) and practicing reading, with the help of a dictionary. And attending Esperanto events, which will do wonders for your speaking and listening comprehension.

I'm sure people here will have a lot more suggestions. If you have specific grammatical topics you want to do some exercises for, then lernu is good for that. Go to Learning > Exercises.

Also, all of the courses and resources are free here. Take advantage of whatever looks good to you (including the forum, as mnlg mentioned; it's super helpful)

The suggestions already made are all good. Here's a few more possibilities IMHO, and they are only suggestions.
1. The book Gerda Malaperis by Claude Piron has been made into a film on DVD, well worth it.
2. Claude Piron's Lasu Min Paroli Plu and Vere au Fantazie are good follow-ups to GM.
3. The book Teach Yourself Esperanto is worth working through slowly and thoroughly. If you study it with a tutor as part of a correspondence course (as I did), so much the better.
4. The illustrated magazine Juna Amiko is excellent for improving your vocabulary. In the printed magazine there's often a mini-vortaro beneath many of the articles for words apart from the basic vocabulary that JA uses (which is listed on the Lernu website). Several of the articles (without the vortaro or illustrations, however) are on the Lernu website, and will give you an idea of what to expect.
IMHO you should be in a good position to tackle Juna Amiko (with a beginner's dictionary) after you have mastered the vocabulary in any one of the following:
Both parts of Jen Nia Mondo
Teach Yourself Esperanto
Gerda Malaperis plus Vere au Fantazie
All the vocabulary taught on the Lernu website courses that make up its classified lists.
5. Two more aids to improving vocabulary: the illustrated book for children Mil Unuaj Vortoj and (for adult learners) Wouter Pilger's Baza Esperanta Radikaro.
And now, I wish you good luck!

And attending Esperanto events, which will do wonders for your speaking and listening comprehension.

For listening comprehension I strongly suggest Radio Verda www.radioverda.com with our own Arono Chapman.