Important work gets backed up everyday onto my external 80Gb firewire drive (40Gb used), anything that I don't need such as test renders etc. get deleted.
On my TiBook I like to keep as much freespace as possible so that when I take work to clients I have more than enough space to work at their offices, although I'm down to my last 1.47Gb on my TiBook, but now that I've got all the Macromedia MX software and Illustrator 10 on the way, as well as Photoshop 7 that I received yesterday and After Effects 5.5 and FCP 3 within the next week, I'm seriously considering flattening my machine and doing a full re-install, and make OSX my main system (currently OSX is on it's own 2Gb partition) and running OSX and OS 9.2.2 on the same partition and start using OSX natively........😀
I just need Macromedia to release Director for OSX then I'm away and completely OSX native!!! 😀