I could really use some help.

For the last two years soaker hoses have worked to keep my fruit trees, lawn and other well established landscape watered. This year I'm putting in new perenials, bulbs, herbs, veggies, vines etc. etc. I want to get drought tolerant stuff going. I have a good well to get things established. What I need help with is designing the most water saving set up possible.

I've put on paper all the areas I want to work in. I have about 10 pages worth front and back. Can anyone suggest some kind of software or? program, it doesn't necessarily have to be landscape related. I just need to be able to put the whole thing together so I can draw out the path of my drip tubes etc. and then do the math for how many drippers can be on at a time.

I've thought about taking all my pieces of paper and laying them out on the floor like a puzzle. It seems like there has to be a better way. All comments welcome.
Thank you a bunch!