As you may know, republicans are fighting the law.
The New York Times has a guide to the arguments SCOTUS will be hearing and the questions SCOTUS will eventually answer. The hearings won't be televised but the audio and transcripts will be posted on the SCOTUS website.
Of course, all of the republican candidates say they would repeal Obamacare, if elected. Easier said than done.
Santorum's healthcare plan revolves around people saving money in health savings accounts. Watch.
Romney says he'll let states decided what to do. Watch.