If you missed it, please check out this blog post by Mike Robertson:
It is a very thorough look at how to warm up, why to warm up, and the purpose of your warmup. It then goes joint by joint through areas you might need to emphasize. This will help you design your warmup program so that it is not excessively long (or even long, period) yet will still get you ready to exercise.
Mike Robertson is half of the duo behind Magnificent Mobility and half of the duo behind Inside/Out
It is not to be missed!