I bought a used G5 that has Tiger 10.4.11 installed and it also has several other programs such as Power Point, Word, Entourage, etc. I am planning on upgrading to Leopard but need to know what safe guards I need to take to make sure that I keep the extra programs. I also have ordered an external hard drive, will I need to or can I down load these programs to the external and then reload them back onto my computer? While I am on that subject how about in the future if I should really upgrade and buy another "new" or "newer" Mac can I transfer the programs then as well?