Packages are available for OSX 10.3/10.4 (powerpc) from the University of Iowa Ghemical page (http://www.uiowa.edu/~ghemical/osx.shtml). These packages include; Ghemical (GAMESS / OpenBabel / Shortcuts Enabled), GTK-Gamess and OpenBabel. If you have any questions/comments feel free is e-mail me. -Donald