There is not to much more to say about the pine and poplar. I agree with SP_343 if you go to Lowes, Home Depot, Menards etc. Look over the woods carefully, pay close attention to the end grain of the wood, look for the growth rings to be as straight up and down as you can find, this is your most stable wood. I think these stores buy in such bulk they don't even know what they have on the shelf. I once found a curly Mahogany board for the price of regular Mahogany, I have found Birds eye maple in with regular Maple. You have to be willing to take the time and look, but treasure is out there. Mark