Migrating Users/Settings to an External Drive

I had a problem with a temporary folder and it never completely went away; I still had issues with passwords being remembered and things like that.

It was tolerable in hopes that someday I'd get it fixed, until today.

Today I tried to install Leopard, and it won't install because of this problem (I think.) It says it must wipe the drive because it can't write to it... and Disk Utility on the Leopard DVD says the HD needs repair. I repaired both the drive and its permissions with the Tiger DVD (Leopard DVD wouldn't do it) and it said the drive didn't need repair, but it fixed a myriad of permissions issues.

I honestly cannot afford to wipe this drive, and the only external drive I have is a 250GB USB drive formatted in FAT32, and Carbon Copy Cloner doesn't work with USB drives. I tried SuperDuper! yesterday with cloning an iBook, and when I imaged the clone back to the iBook, it wouldn't start, so I'd rather not user SD! again unless someone can help me with the iBook!

Is there someway to migrate the account and network settings (etc.) to an external volume for use with Migration Assistant after Leopard wipes the drive?

 

I'm still having issues...

I started SuperDuper! about 24 hours ago, and it's only copied about 4 GB of data... for some reason, it's effective copy speed is only 0.5 MB/s.

Is this because I'm cloning the startup disk?

Is the method for hand-migrating really sure-fire? I can't afford to lose anything (no, it's not backed up yet, and yes I know that's dumb, and yes I'm working on it! )