didn't mean to step on any toes there...jumped the gun a little, sorry again =) thats explained in the 'why create this primer' section at the beginning Incidental Information Littered throughout the webpages are incidental information paragraphs (In Italics and Orange). Please feel free to ignore these as they are, by their very nature, incidental. They are snippets of information I have added for interest but are not essential to the modeling process. I have used a lot of reference from the Wikipedia online encyclopedia as I find it invaluable as a source of information.