FastJoe......
Here is the advice I can give you..... I personally don't think that you have to take the pre-course the department provides in biochemistry. As long as you devote time to studying when you get to PCOM, you should have not trouble. Enjoy your time off now.... believe me, I am about to take COMLEX I on Tuesday and would like nothing more than some down time right now! But if you really feel like you are going to have trouble understanding the subject of biochemistry, then it is worth taking the introductory session. Our biochemistry department is pretty good for the most part and I am sure you will get something out of it.
Best of luck to you......