I haven't followed the Terry Schiavo case closely. I generally don't like the tough issues around things like capital punishment, abortion, etc. It gets messy really quick and it's too easy to demonize either side or take a position that can be misconstrued later.
That said, as I understand it, this woman expressed to a number of people that she didn't want to be kept alive on life support machines. I haven't heard this disputed. As a Christian, I can't see how people can view being kept alive on a respirator or any other machine as complying with God's will. If God wants you to live without a machine, then you will live. If not, then your time has come. This whole matter is unfortunate and kudos to her husband for trying to let her decision on this subject supersede the grossly intrusive episode we see unfolding. As a believer in personal liberty, and as someone who respects the tenets of faith, I can't understand how anyone could support the interference of people who have such a clear agenda to have their way and prolong the life of someone against their wishes and against what would result in her passing without outside intervention.