Just a message Guys. Here is something you may want and like. Its the Reservoir Engineering First Lecture. Look at the Back of it and there are a stack of conversion tables from one unit to another. I would reccomend putting them into an excel format so you can quickly change units around. Just a thought, and this program has been used for more than just one subject. All The best on Wednesday. And if you have any great ideas give me a buzz. J.