That thread has some good info.
I must warn you though, the lab questions that come up do not require some crazy in depth knowledge of the techniques, IMO.
For example, the gel electrophoresis question that comes up only really require you to know that smaller molecules will move farther/faster than larger molecules.
That's it. Nothing really more.
In order to answer the question, however, you had to be able to make some very level headed judgement. I don't think there is anything much I could have studied to better prepare me to answer the question and much of what I looked over was way overkill.
The FRAP question really doesn't require a ton of knowledge of FRAP itself, just the basic principle. However, you have to apply some other, more general knowledge to the question to be able to answer it. So just don't waste TOO much time looking it over.
It will be good to familiarize yourself with the technique, but I was reading way too much info, when I could have had just as good of odds to answer the question correctly after the very first I explanation I read about the technique.