I have a mac powerbook running 10.5.1 which someone partitioned. On the "system" partition which contains my apps etc., I have very little space left. I'd like to un-partition it and have been told I must reinstall the system software to do so. I know how to backup things like my document, but how do I back up all of my emails in Mail, as well as software that I downloaded and don't have the "software keys" for anymore, and software that I can't find the original discs for, etc. etc.
I want to perform a clean install but don't want to lose all of my stuff. Thanks!