I found this prayer service for Katrina victims (PDF file) on the PC(USA) web site. I'm sure more people will see it there than here, but on the chance that someone might see it here who otherwise might not have, I thought I'd share this portion of the service.

Remembrance of Baptism

Through water and the Spirit
we are made one with Christ and all the faithful.
In baptism we begin our journey through life
as part of the community of the faithful,
as part of the Church.
Through our lives we are never alone.
For we all travel together with Christ,
caring for one another,
loving one another,
and supporting one another,
especially in time of great distress.

(Pour Water)

The waters of baptism are waters of death and life.
Our salvation is found in Christ
who suffered for our sake
and stands with us in our suffering today.
Nothing in all creation can separate us from the love of God in Christ Jesus.

The Lord be with you,
And also with you.

We thank you, O God, for the water of baptism.
In it we were buried with Christ in his death.
From it we were raised to share in his resurrection.
Through it we were reborn by the power of your Holy Spirit.

We pray that all who passed through the water of baptism
may continue forever in the risen life of Jesus Christ our Savior.
To him, to you, and to the Holy Spirit,
be all honor and glory, now and forever. Amen.
Remember your baptism with thanksgiving and hope.
In the name of the Father and of the Son and of the Holy Spirit.