Gudasoft

Here are my resources.

Magic The Gathering Rule Book

This is THE program for building decks. It is java based so you can use it on your favourite OS (I hope).

You should follow this forum topic or this blog post here. It is not so hard

• Download and extract a couple of zip files
• Download the art via ready packages also with the java application from this link
  
• Download some decks
• Change the path to the art directory in the config.txt file
• Start some of the .bat files from the directory you have extracted all the files
• Drag & Drop (you can drop entire directory with decks if you want to generate more decks at once)

My first game was with decks from here and here