Mark U , Jan 07, 2006; 08:55 p.m.
It's much more of a pain switching between metering modes on an Elan 7 than on a Rebel (just push * to get partial metering to compare with evaluative that is otherwise standard in P, Av and Tv modes) or Elan II (lever). However, you will learn most by comparing scenes for yourself. Don't forget to explore the metering CF8 option.
So far as flash is concerned metering of the flash exposure is quite independent of the ambient exposure. Ambient metering for flash depends on the exposure mode and scene brightness relative to ISO. You would do well to read the flash bible here: