Best practices for adding external package sources?

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Greetings! I have two dilemmas with AutoYast I'm sure somebody here will be able to help me solve. They're really the same issue, and that is adding external rpms. Specifically, I have a few rpms I need to add like ImageMagick, rrdtool, Nagios2, Cacti, etc, that are not a part of SLES9-SP2 (x86_64). I also need to be able to add newer major, versions of packages like MySQL-4.1.22. What's the best way to go about doing this? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Darwin) iD8DBQFDVXDmwjCqooJyNAMRAjc8AJ4yCvXUoxhGih//I97JHyUO5iC3OQCeOxRc Vke/AFB95B7dON363s395GE= =w7K1 -----END PGP SIGNATURE-----