Thank you again everyone. I certainly have a better understanding than I did before. It isn't that I would attempt to do anything this complex as most people know my computer skills are marginal at best. However,I have a better appreciation of the differences both in terms of the requirements and the rationale for using each of the approaches. Once again, thank you for your explanations and for the help many of you have given me over the years. It is indeed appreciated.
Warmest regards, Tim
