For the money the best deal is the podcast: CoffeeBreak Spanish. It is on iTunes. It is free but there is a lot of advertising. The Michel Thomas series sold on Amazon is excellent but only about nine hours in total length so not by any means complete. I would start with Michel Thomas and CoffeeBreak. Pimsleur is excellent but more expensive. It is sold through Amazon and others. You can purchase the mp3 files of it at reduced cost. Rosetta Stone is heavily marketed and therefore the most popular but it is not the best. It is also expensive. However it does help with spelling more than the others.
I have tried some other podcasts and audio programs but did not think that they were that good. I have not tried Fluenz yet though.
Wyzant is a web site where you can find a tutor for any subject near where you live. I had good luck with it.

Rossetta Stone or is something better?