Before I moved to China, I had gotten into the habit of listening to Mandarin Instructional CD's on the way to work. Now, it turned out that I was moving to an area of China where only Cantonese was being spoken, but that's a different story. I actually found the sets made by Pimsleur to be very effective at learning conversational phrases and conversations.
I picked up the Spanish version last week, and have been using them on my morning commute to work. I would like you all to know that yo hablo y entiendo un poco de espanol.