I have the Sony DC-52. It has less zoom than the -72. It still takes great pics. I got it at Wal*Mart for less than $300. The 64mb memory stick was another $40. It comes with a 16mb stick. It will take 3.2megpix pics. Most of the time I take them at 1.2MP. It has four MP settings.
It will also take Mp movies. I use the lower setting to save bytes. It is hard to tell the difference between the 1.2 and 3.2 pics. When you blow them up there is a diff but for what I do the lower res works fine.

David