Take your time to bask in the glory of the mega-pixelage. That's right, a New Year's present from my beloved has me up and running again. I'm busy taking pictures with my beautiful new digital camera.
This is a project of Tristan's from awhile back. We built this hoop house out of PVC and shade cloth, then replaced the shade cloth with polyethylene when it got cold. Just a tip--this plastic is a cheap-o painter's drop-cloth from the hardware store. As far as I can tell, it's the same as the 3-mil greenhouse plastic you can buy at a premium. This cost about $10 for a 15x20 foot sheet, I believe.
Anyway, the previous design lacked enough PVC infrastructure to prevent sagging when snowed upon and blowing about when winded upon. Tristan added a center pole and bent the PVC hoops inwards to meet it. This created a much more stable, much more attractive hoop house. Our plants are toastier, too!