lets see...
1x Seagate Barracuda 200GB ATA-100
1x Western Digital Caviar 40GB ATA-100
1x Western Digital Caviar 20GB ATA-100
1x Quantum Fireball 20GB ATA-66
1x Maxtor 20GB ATA-100
1x IBM 8GB ATA-33
1x Toshiba 30GB in all its 4200RPM Glory...
200+40+20+20+20+8+30= 338GB
ofcourse that is more then one system
if counting by the one you use the most then just 200GB
Those are all PATA drives, I decided to try a SATA 250GB WD and one died on me after a month, warranty replacement died after a week, afraid to plug in 2nd warranty replacement.
so if you count my unplugged SATA it's
250 + 250 + 80 = 580GB
do I need 580GB not really but i swore along time ago that I will have 1TB in my comp