Backup job creation ideas

[MK-2]

OK I'm tired of the backups jobs put in place by my predecessor. We have every single folder on every single drive of the server being backed up.
I want to create some new jobs to start running but want ideas on best solutions.
Currently we have
Admin - approx 60gb data being backed up
academic - approx 140gb data being backed up
firewall - not sure as the full system backup it runs in has never completed!

we have AIT4 and AIT5 tapes littered around here so minimuim i have is 200gb and max is 1tb per tape.
Would it be best to do a monday-thursday daily incremental backup of ALL servers on one tape (so approx 200gb data), and then each friday do a week1/week2/week3/week4 full backup to run over the weekend?
I can't see any reason why i should go with the current admin/academic separate backups.
we have a tape loader but i wouldnt want to load a weeks worth of tapes in, just because id want them kept in the fireproof safe until needed....unless i do a two weekly backup so mon-thu weeks 1&3 and mon-thu weeks 2&4. so i can keep the tapes in all week then swap them the next week.

what do people think would be the best way to go.....considering i dont want to buy anything else so suggestions of other hardware/software aren't an option.

cheers

[markwilliamson2001]

Just thought it would be worthwhile mentioning that you need a fire and data proof safe, as even in the event of a fire, the data would be lost, so essentially it is useless!!!

Otherwise we do something similiar...

Mon-Thursday
Friday1, 2, 3
Month 1, 2

We had one tape drive for both curric and admin. Each tape drive covered 2 servers, until today, when we have had one tape drive for each curric server now.

HTH
Mark