Here’s a good article on the Resurrection by one of my college professors: http://www.opc.org/new_horizons/NH01/04d.html

Most churches around the world will be celebrating Easter this Sunday. It is a time to celebrate the resurrection. But be careful to not elevate this Sunday above other Sundays. Every Lord’s Day is a celebration of the Resurrection. There is nothing wrong with recognizing the church calendar as long as you don’t turn these days into more sacred days. This Sunday is not a more powerful Sunday.

I also urge pastors to not water down your sermons because there may be extra non-churched people in your congregation. Easter Sunday should still be seen as a day of worship for the sheep and they need to be fed. It is good to recognize that the volume of non-churched people will increase this Sunday and that this is a good opportunity for them to hear the gospel, but this is not their Sunday. This Sunday is the Sunday for Christ’s people like every Sunday.