Due to copyright issues, Fedora cannot include the "core" fonts Arial, Times, Verdana etc. Instead, Fedora offers an alternative under the name "Liberation fonts". Well, great. Except that 99,9% of all documents received use these core fonts, and I'm not planning to do a find and replace with each and every document I open.
So, I'm sorry to say this: I think trying to replace the core fonts is simply stupid.
How to build your own font package
yum install rpm-build cabextract
rpmbuild -ba msttcore-fonts-2.0-3.spec
Now install your package
sudo rpm -i ~/rpmbuild/RPMS/noarch/msttcore-fonts-2.0-3.noarch.rpm© GeekLabInfo MS Core fonts on Fedora 13 is a post from GeekLab.info. You are free to copy materials from GeekLab.info, but you are required to link back to http://www.geeklab.info