I've just ordered a LaCie 120GB D2 external Firewire HD. I've got a G4 Powermac with 768mb RAM and 2 internal HD's (30GB and 60GB, both with room).
I intend the external FW drive to save media files (mpeg from EyeTV, dv, mp3, etc. etc.); as well as to act as a system/data back up in case of system failure type of emergency and also as a "grab and run" drive in case of fire or incoming missile

Ever since a friend lost his life's work in a housefire (no one injured, thankfully) I have become so afraid of being in a situation where I have to decide "Should I grab the family photo album? The espresso machine? The cat? The work computer?". Anyway, I digress...
I'd be interested in reading comments and suggestions for drive partitioning and management suggestions. Some questions I have include:
- Should I partition the HD at all? (remember, I want to save both EyeTV media/mpeg files as well as data backup)
- If so to partitioning, into how many partitions?
- Should I install OS X so that I can boot from the FW HD? (if I ever chose to do so). If so, into its own partition? If so, what size?
- With regard to backing up, should I mirror my system HD and data HD (both partitions now on my internal HD) completely?
- any software recommendations for backing up?
Any other comments or suggestions would be appreciated.
Thanks,
LV