Can it be done by copying the files to a USB drive/external HDD? What files do I copy? Using multiman's file manager I can see app_home, dev_flash, dev_flash2, dev_flash3, dev_hdd0, dev_hdd1, and ps3_home. But it only will let me create folders, not copy them (or at the very least, none of the buttons in the version I have seem to be mapped for copy in the file manager). If FTP is the only way. How does it need to be setup (a link to an up-to-date howto is okay)? Also, thanks for the provided answers.
Aside from the stuff above, I believe I will try the kmeaw 3.55 CFW. The instructions I have read seem to be very easy.
I want to backup everything, but I have never been able to get FTP to work correctly. I have been able to "see" the PS3 on my computer with FileZilla and BlackBox. But I could not ever get it to allow moving files to the PS3. And as such I am a bit worried that anything I can get off the PS3 might not actually be complete.