Welcome Phil,
Everything that you have asked is discussed in detail , in this forum. If your question is specific, as most of yours are,,,then use the "Advanced Search" link , above right(Not the GOOGLE Search Box),,,,then enter key words that interest you. This will reveal the threads that discuss the questions you have asked. In 2 or 3 hours of reading the threads that have been found, your journey will be an easier one.

Don't forget to spend some time in the Library section.