Setting up large orchestral template - should I use Bidule?

I have always had problems with projects being unable to cope with large numbers of tracks loaded with East West (Play), Kontakt and VSL samples. I now have a powerful 8 core Mac with 8GB RAM, but the limit seems to be between 40 and 60 tracks before the project starts overloading and crashing. I would like to set up an orchestral template in Logic so that I can work more efficiently, but I would need to load many more tracks to give myself a large enough palette to work from.

I know that people work with larger numbers of tracks with the same spec as me, and I have noticed recently that they are often using Bidule to host the different plug-ins. I wondered if it was the use of Bidule that helped them to have so many instances of a particular library running at the same time? Despite having scoured Google, I have no idea what Bidule is, what is does, or how to use it. Can anybody tell me if this could help me with my overloading issues and allow me to work with larger numbers of tracks?