I'm installing Two 1-TB 7200 RPM SATA Hitachi Enterprise drives into a G5 2.0 GHz Duel Core Power Mac with built in BT/AP, running OS 10.5.8. I need to devise a logical partition scheme. I have never used a "Scratch / Media / Volume / Partition" scheme before. MY IMMEDIATE AIM: I want the fastest internet connection possible, and I very much want to fire my Cable TV and Land Line Phone Companies. I figure that learning how to download and retrieve various stuff from a "Media Volume" may help me facilitate these two ... life long ambitions. Had two 250 GB Hitachi SATA's in a G3 333 (Gossamar Beige) for years using xpostfacto to run OS 10.4.11. I filled just over 30 GB's on two 225 GB volumes in 7-years. The G5 is a veritable powerhouse in comparison ... Now I want to do something else! My primary use for a computer till now has been writing. I use MS Word to write and download many PDF documents related to subjects I write about. My habit has been to run two volumes with everything ... Systems, Apps, Utilities, and my documents installed on both. I load the OS, Apps, Utilities, everything into my Primary Volume. Then I use "SuperDuper" to create a mirror image of the Primary Volume on a Secondary Volume, where I can test new software and retrieve folders if Tech Tool Pro and Disk Warrior can't restore the Primary. I'm buying a Mac Pro for my daughter in the near future. I figure it will facilitate her interests in graphic design and make downloading stuff like movies more viable. I'll likely put these 1-TB drives into it ... but the thing is I don't exactly understand how to configure and utilize a "Media / Scratch" Volume. Any guidance on logical schemes for partitioning these drives would be much appreciated.