Just as a quick FYI, pymol is available in the official fedora 9 updates, and will be part of the fedora 10 release. If you have fedora 9 or will be installing fedora 10, you can just do
yum install pymol and you should be all set. The rpm is based on the b11 branch, SVN tag 3468. -Tim -- CAPS LOCK IS THE CRUISE CONTROL OF AWESOMNESS