How to upgrade to OS X Leopard from OS X 10.4

I want to upgrade my Mac from OS X 10.4 to OS X 10.5 Leopard, but I can't find a program to download to upgrade my Mac.
Where can I find it?

You posted in Intel iMac so I'll presume you have one. You would probably be better off upgrading to Snow Leopard. It will be cheaper and a lot easier finding the disc (buy it from Apple online).
Get more information about your computer. Go to the Apple in the upper left corner of any window, then "About This Mac", then "More Info..." Copy and paste the information here, but omit the serial number and Hardware UUID (if present).
Compare with:
Snow Leopard 10.6 Technical Requirements - http://support.apple.com/kb/SP575 - note by K Shaffer - http://discussions.apple.com/message/12921514 : "Some early Intel-based Macs can't use Snow Leopard 10.6 installers; of those, the Core Duo (not 2 duo) were suspect and had issues." - and a qualifier by "a brody" http://discussions.apple.com/message/13028822 : "I think that refers to the ones without at least 1 GB of RAM."
Also consider:
A Mac OS X 10.6 Snow Leopard Application Compatibility List - http://snowleopard.wikidot.com/
Free Snow Leopard upgrade option for Mobile.me subscribers - http://me.com/snow-leopard

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Message was edited by: donv (The Ghost)

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Message was edited by: macjack

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