[dnanian]

Given the amount of free space on your internal drive, it sounds like you need to upgrade the internal. There are few choices here, but the largest one would likely be a 100GB unit. Check at ZipZoomFly or NewEgg for good prices/drives.

To upgrade, I'd probably buy an external drive from OWC, WiebeTech or LaCie. Do a full Backup - all files with SuperDuper!, rename the external to the same as the original drive and then boot from the external.

At that point, you'll be able to erase the internal, but instead of doing that, make sure everything looks good and then shut down and install the replacement internal drive. Once done, use your Tiger discs to install Tiger, then use its own Migration Assistant to copy files from the external to the new drive.

At that point, you can use SuperDuper! from the internal to back up to the external.

Make some sense?