Not that this will help with affordability, but I just finished researching foreign language programs myself (with the loss of the library Rosetta). Now, this is just based on reviews, awards and various group listings that I belong to, the Auralog Tell Me More software seems to be “it” right now. I was a big Rosetta fan until I started reading about this. I’m intrigued…
Here’s a link: http://www.tellmemorestore.com/magnum.asp?pg=homeschool
Yes, it’s expensive, but on the perk side, it contains all levels in one package; beginner through advanced (one time purchase). It tracks family members separately and according to the “reviews” does a much better job with the grammatical side of the languages, the written and sentence structure.
So, probably didn’t help you much, but I’m in the same boat. I’d love to hear others experiences with different programs.