ADD ON LENSE APPLICATION FOR A1:
See this post for an example:
LCD VERSUS EVF QUESTION:
I use the LCD most of the time on my A1 - primarily because I wear glasses which makes it easier than the EVF. If you look at the battery test on dpreview you'll see the battery on this camera is superior in comparison to most digicams so battery drain is not as much as a concern as with some other cameras (the Nikon 5700, for instance, has less than HALF the battery life of the Minolta with the same independent tests).
Not sure why you would use the digital zoom. I believe you can get the same result with software - I have always stayed away from digital zoom on digicams because I have never liked the results. But then again - for most of what I have done with this camera 7X optical has been sufficient (AND I LOVE THE CCD-SHIFT ANTI-SHAKE FEATURE!).