Use sketchup to create a digital image of your dream house.
Watch the video below
View other tutorials and email me links to any others that you felt were very helpfulCheck out this page from google listing different resources for learning sketchup: http://support.google.com/sketchup/bin/answer.py?hl=en&answer=36207
Check out/ review the "quick reference card"
Download sketchup at home so you can practice
Create a 3-d rendering in sketchup of your dream house