"Inkscape is an easy program to use; the only big problem I encountered involved aligning copied brackets."

"Inkscape is a vector graphics editor, which means that images and objects can scale easily, so team names and brackets can be resized as you like. The SVG file is included in a downloadable ZIP file on the template product page. Inkscape also exports PDF files, so I created a printable version of the bracket if you want a down-and-dirty printout for brainstorming upset picks or tracking winners. The PDF file is also included in the downloadable ZIP."

http://www.download.com/8301-2007_4-9897368-12.html