After shooting at night with a Canon 20D for 2 1/2 years, I've accumulated a few notes on what works and what doesn't. I've started a new page on the LunarLight Photography website where I can share this knowledge with our "after sunset" colleagues. Have a look! (It is at the link "Digital Night Photography Notes" near the bottom of the home page.) I'll be adding to this store of knowledge as I get the time.
The digital camera has made night photography much easier in some ways, and opened up whole new horizons. But it also has some difficult issues to overcome as well.
Be safe out there -
- Kit