Mr. Watt, First, thank you for being such a spectacular player and role model. Your music and ethic has been an inspiration to me. I saw you at the Knitting Factory on Friday night. It was awesome, and I hope that you kick the mystery bug soon. Now, to the question. I'm finally gonna upgrade from my traditionally crappy amplification, and I want to build a cabinet, either 2 x 15 or 4 x 12, because I have found a cheap speaker supplier, and have a decent understanding of woodworking. I know that the size of the enclosure and the size and location of ports is important, but I don't know how to determine what is right. Do you have any experience with DIY speaker cabinets, or any advice to give?