The only problem with doing high zoom lens (you're probably looking to need at least 300-400mm equivalent if you want 50 yards) is that high zoom lens tend to have small apertures, thus having to drop down shutter speeds in order to collect enough light in the sensor. A tripod helps out in those situations though. The Canon S5is would be a very good choice for you if you want to expand your photographic capabilities. There are a few other cameras that would might work.
It's all about compromises...large zoom lens are a compromise and it's usually distortion, Chromatic aberration, and smaller apertures. If you are in decent light it'll work well, but in low light stay in flash range or increase flash range by buying an external flash. Remember, the tripod is your friend.
I am a novice photographer, probably not even much of a photographer, but I know what I want I just don't know where to get it. There is only a few very important things to me and that is zoom, up to 50 yards or more, the ability to take night pictures(fireworks, or the moon shining on a lake) and quick picture taking. Could someone please tell me which camera is good for these.