I just thought I would post up an entirely new thread with this information since it seems to be the basis of many questions.
The proper Gauge Wire based on current demand and length of run:
The proper battery size based on total RMS wattage of system:
The proper alternator size based on total RMS wattage of system:
The proper fuse size based on power wire size:
If anyone has anything they would like to add or any comments or corrections that they would like to make, feel free!
Hope this helps someone out there!