For all you conflicted Catholics out there in this election, I've found help for you. The Vatican has published a guide for people who have a hard time choosing between abortion, economics, environmental issues, poverty, stem cell research, etc. In the Church's eyes, however, the most important thing is to preserve the sanctity of life.
Here's a link to the article.
Archbishop Ronald Talinger, Chairman of Catholics for Ethics and Family, has created a guide that is aimed at reaching all Catholics, even those that are not necessarily devout. "The Church does a great job of solidly stating their position," explained Archbishop Talinger, "but it does so in a way that not everyone can easily understand. That's why the common Catholic needs something that speaks to them about how they are required, as Catholics, to vote this year."
I found this article through the Catholic/conservative blog Southern Appeal, which I casually follow. I highly recommend the site. (Also, it has a cool picture of a bayonet.) One of its regular contributors, Francis Beckwith, is currently a Fellow at the Notre Dame Center for Ethics and Culture.