Separation of Church and State: McCain vs. Obama

The separation of church and state is one of many key issues being debated by our presumptive presidential candidates - John McCain and Barack Obama. The following link outlines what each candidate has stated about this issue. Further, the summary brings up a few quotes that each candidate has issued in the past, and compares them to their current stance.

What do you think? Is the separation of church and state a key issue in the current election? If so, how do you think each candidate could use this topic to bolster their campaigns?