I've been a custom design & build landscaper for seven years and have been designing & installing low voltage systems in this time. I have only done residential & nothing really big. Generally speaking the systems are always nice and I have never really had any call backs or major problems. But, I have just started using spider systems and know there is plenty more for me to learn (especially concerning proper lamp selection and just general "how-to" nitty griddy). So has anybody read any good books, CD's, etc. about "how-to" design & install low voltage systems. Something that is very thorough and in-depth.