Warning, Mac OS X 10.5 Leopard really ups the requirements

Ok so check out these changes in minimum requirements for Mac OS X 10.4 Tiger vs 10.5 Leopard

Ok both require:
* DVD drive
* Built-in FireWire

But now let's look at the differences...

10.4
* An Intel processor or a PowerPC G3 (233 MHz or faster), G4, or G5 processor
* At least 256MB of physical RAM
* At least 3.0 GB of available space on your hard drive; 4GB of disk space if you install XCode 2 developer tools

10.5
* An Intel processor or a PowerPC G4 (867 MHz or faster) or G5 processor
* At least 512MB of RAM (additional recommended)
* At least 9GB of hard disk space


That's a huge leap!
They went from a 233MHz G3 to an 867MHz G4 as a minimum. Doubled the RAM. More than doubled the hard drive.