Finishing My Dual G5 Upgrades For Recording, Need help Cuz I'm a n00b! Options

[dinofond]

Greetings everyone, this is my first post. In the last 3 weeks I have re-tooled my project studio with a dual G5 1.8 running Logic 7.0 pro, 1.25 G/RAM PC3200 and a Motu 896HD. I should be picking up the second Hard Drive Tomorrow afternoon although I wish I had picked it up today. I have a degree in information systems but haven’t been on a MAC since college a few years back. I plan on a full new install when I install the second drive to keep it clean. My questions are these simple ones if someone can lend a hand:

When I put in my second drive to store samples and music on (Since the OS and Logic should run native on the main drive for performance) is there anything I should know as far as formatting and such? For example should I run partitions on either one of the drives for better performance? Should I use one specific format as opposed to another? Are their services running that should be shut off as you would a Linux or M$ machine?

Sorry if this makes no sense, it’s far past my bedtime. Thanks in advance for the help!

-Dino