Bill5362 1450.00 Dose not need digitizer.Download plans from plan room or copy to disc,or take pictures of plans digital camera save in my pictures. Open my picture file in Site worx on screen scale them. Before i bought software they have 15 day free trial period.You can use multiple plans. Like topo, grading and sewer plan. You align them, then you can digitize contours on one, proposed off grading plan, sewer off sewer plan.I personally like it. Find at Vertigraph.com