Finally got to try out my XSi and Liveview after returning much later from fireworks about 45 miles away than I had planned. About midnight local time, setup the camera on a tripod with 18-55mm zoom lens set at 18mm and focused all the way CC or past infinity. The sky was perfect, a cool 68 degrees and relatively low humidity. The Milky Way in Sagittarius was directly South and I had a great view of it from the end of my driveway where I setup.
I had the camera preset to M and ISO 1600 so I started Liveview and within a few seconds was able to acquire Antares on the screen and magnified it. Then I fine tuned the focus. After that I took a 30 second exposure and looked at it magnified. Stars had trailed quite a bit at that length of time so I reduced it to 15 seconds and found that acceptable.
I took 20 lights, 5 darks and called it a night as I wanted to process the images a bit and see if I was on the right track before doing a lot of shooting. I loaded the RAW files into DSS and stacked them. Then I took the resulting TIFF and opened it in Photoshop CS2, adjusted the light and dark points, did some basic curves adjustments and by 1:30am was satisfied enough to go to bed very pleased!
I feel I have taken my first baby steps as an astrophotographer and am making progress! I am posting my first result even though it is far from a finished work and nowhere near what I know I can do eventually. But it will be a good baseline reference against which to compare future achievements.