What an awesome post Jamie. I have been debating the idea as well, since I have been watching Sean use this stuff for about 2 years now. He does his racks slightly differnet (i.e. he routes grooves in the legs for the shelves to slide into. It makes the "screwing" a bit easier (no pun intended). By the way, your rack looks great (again no pun intended). The last comment I wanted to make, is concerning why I quoted your above post. When looking for Expanded PVC, also make sure to ask (if it makes no difference to you) what the price is of the white pvc. White expanded PVC is usually cheaper than the black. So, if color doesn't matter, you can save a few more bucks as well.