Free alternatives for Autodesk 3Ds Max:
Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License.
Google SketchUp is software that you can use to create 3D models of anything you like.
Free alternatives for the Adobe Photoshop:
GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring.
Paint.NET is free image and photo editing software for computers that run Windows. It features an intuitive and innovative user interface with support for layers, unlimited undo, special effects, and a wide variety of useful and powerful tools.
Free alternative for the Adobe Illustrator:
An Open Source vector graphics editor, with capabilities similar to Illustrator, CorelDraw, or Xara X, using the W3C standard Scalable Vector Graphics (SVG) file format.
Free alternative for the Adobe Dreamweaver:
Web-browser, advanced e-mail, newsgroup and feed client, IRC chat, and HTML editing made simple — all your Internet needs in one application.