You can download Rocket Language’s Spanish course here for $99.00.
You can even sign up for six lessons for free.
I’ve not used it, but it seems like it might be a good product if you want to learn Spanish via an Mp3 player while you drive. You can order the hardcopy at nearly $300, so the digital download sounds like a better idea to me.
The best way I’ve been finding is immersion. But many don’t have that option. So a course you can download and begin at any hour is a great way to start.