Apple OS X 10.6 Resources

I’m studying for my Apple Certified Support Professional 10.6 (ACSP) exam. Here’s a list of resources applied so far:
Mac OS X 10.6 System Requirements:
Intel Processor
1GB RAM
5GB HDD space
DVD Drive (MacBook Air can use a shared disc drive to install)
Integrated display or video card supported by your mac
(Some Features require internet or MobileMe)
HT2658 “Determining BootROM or [...]