Ty, we need to bully Jonah into getting back on the Pimsleur wagon.
I've been doing the French Pimsleur, by no means as regularly as Ty, but it has helped my pronunciation immensely. I took 3 years of French in high school, and realized that for all the vocab and verb conjugations and tenses that I learned, I never actually learned how to speak it off the cuff at all. I would also vouch for Pimsleur in the sense that it really sticks with you: I have not been regular AT ALL (you're supposed to do one 30 minute lesson a day), and have sometimes gone a week or two between lessons, but I have yet to forget anything that I've learned.