I found the audio osmosis CDs really helpful while studying for the MCAT. They were great because I listened to them while commuting and waiting in lines and stuff-- and Jordan and Jon, the speakers, were hilarious so you really remember stuff. It's awesome because you can use it to make the most out of the downtime that would be wasting, and it gives your eyes a break from studying. To this day, I still remember stuff they taught me from listening and I use it to help me in my biochem class.

I'm selling them for only $50, opposed to the $200 they usually sell it for online.

Please let me know if you are interested.