Quiero aprender español - Ayúdeme!

I really want to learn how to speak Spanish, and I want to do it with software, or something I can download to my iPod. I took Spanish 101 and Spanish 102 three years ago, and none of it stuck. The moment we got to any verbs beyond simple present, I was like--bzuh?

I'm familiar with Rosetta Stone, but I'm not spending $500 to learn Spanish. There must be other, cheaper products on the market. Does anyone have any suggestions? Anyone use something they found really worked?