Professional Couples

We’re both dedicated to our careers as well as each other.  However, managing money is frequently an unpleasant topic of discussion.  Is it better for us to manage our finances separately or together?  We have such different opinions about appropriate levels of debt, how much liquid cash to keep on hand and how much investment risk is appropriate.  This is difficult to resolve.  How do I answer these questions? We need a plan.

How can we plan for common financial goals when our objectives are so different?