You could say that you're lucky considering the MCAT doesn't test organic chemistry that much anymore
I've read some of these threads and it seems that there is only 1 or 2 organic chemistry passages (5-10 questions) out of 9 total passages in the biology section nowadays. In the past, when they gave the paper version, it was more like a 50% split
If your goal is simply to get an 8 in each section, I think you're safe with Kaplan and Princeton Review books. All you need to know is the basic concepts that are outlined. I don't think it's really necessary to take a class to do well on the orgo section unless you're aiming for a really high score, but if you have any problems, maybe you can talk to your adviser and see if you can sit in on some orgo lectures at your school.