You can purchase the conference materials about 6 weeks after the SIGGRAPH event through the website.
“The ACM SIGGRAPH annual conference has a large number of programs, and is documented in several different publications. The Conference Proceedings book contains technical papers and awards. The Electronic Art and Animation Catalog book documents the Art Gallery and Computer Animation Festival programs. In years past, there have been CD-ROM publications accompanying these two print publications, as well as a Course Notes CD-ROM package, as well as a Conference Abstracts and Applications book and CD-ROM, documenting a number of programs at the annual conference. For 2003, we have introduced two new publications: the Full Conference DVD-ROM, which contains electronic documentation of all programs at the annual conference, and the Conference Select CD-ROM, documenting all programs but Papers and Courses.”