Thanks, Roberto!
I can pretty much guarantee that I'll be slightly off contour simply because I can't seem to draw a straight line with my backhoe! I read an article @ permaculture news.org regarding hillsides, Swales, etc. and have (I think) come up with a pretty good plan. 2-3 beds, depending on width, a swale, 2-3 more beds, a second swale, on up to the top. I seem to have a couple natural Swales that I will be enlarging a little to maximize catch potential of rainfall. Now if I could just get the ground to thaw....