The fist software is called Sketchup and is brought to us for free by the kind people at Google. This free drawing software is a little different than the other packages. This one deals in the third dimension, or 3D. I first saw this program a few years ago, and it looks like Google has bought it and now released it for free - lucky us! I gave it a try and in about 10 minutes from installing the program I had created this little art-modern living space. I think this software is really cool - and if you are studying perspective, or are interested in architectural or technical drawings I would really highly recommend it. I'm having so much fun with this I think I may try designing a dream house for myself! If 3d and perspective sounds interesting to you go check it out at http://sketchup.google.com.