Floorplanner.com THIS IS AWESOME! TOTALLY FREE! you can draw your own floor plans for your dream house, draw a room you want to re-model or re-decorate, plan a deck, a backyard, anything and it's free! Any size, any elements, this is great!
This is a MUST. Input your rooms measurements and the measurements of your furniture to see what your layout will look like before you break your back moving things! Plus see what different accessories will look like in your room!