Anyone grow blueberries?

I'm starting to prepare some ground for berries - adding sulfur to reduce pH from 5.4 to <5 and adding a lot of organic matter. I'll be planting next year at the earliest, but may wait until 2004 if soil isn't ready. Other than reducing pH and increasing organic matter is there anything else which should be done to prepare the ground? My soil is a well drained sandy loam.

Which varieties are recommended for best flavor? I'm in central NY with a zone 5 (almost 6) climate.

Who are good suppliers of plants?