Don't plant in rows. Divide the garden into 1 ft squares and then depending on how much space each plant, divide each sq. into smaller squares. Sq. Foot Gardening Rules! Instead of one long bed, you make 4'x4'x6" or smaller, boxes that can be moved about if you want to. Put ground cover underneath to prevent weeds. Since it doesn't have soil and compost should have no weed seeds in it, you shouldn't have to do a lot of weeding. I love gardening, but hate trying to stay ahead of the weeds.
While Ari's recipe for soil less gardening sounds good, there is a faster way to do much the same. It's called Mel's Mix and is made up of equal parts peat moss, compost (need to start with several different sources until you get your own compost bed going.) and Vermiculite.
Then each time you plant something add some more compost and it will never need additional fertilizer.
That's about all you really need to know from Mel Bartholomew's book, which he sells from his web site. I have the book, but yet to get Jonwin to build me the raise beds and spend money on the ingredients for Mel's Mix.
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In the place of a Dark Lord you would have a Queen! Not dark but beautiful and terrible as the Morn! Treacherous as the Seas! Stronger than the foundations of the Earth! All shall love me and despair! -ElneClare
This Post is written in Elnese, If it was an actual Post, it would make sense.