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I buy Macs because they're reliable, of good quality and I can triple boot the with Mac OS X, Linux and Windows without hassle.
 
Why not use an OS that is still developed like Linux or BSD? Moving from an 8 year old OS to a 6 year old OS is hardly an update. You will still be running an old and totally unsupported OS. Wouldn't you rather have something that is up to modern security standards?
Last update for 10.5 was in 2011, not 2007

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the only PPC Mac I would install Leopard on is a G5, which has the processing power to handle the greater 'bulk' of Leopard.

My Powerbook G4 flies with leopard everything turned on and really multi-tasking like putting up a 720p movie on the tv via HDMI while browsing the web or other things on the other screen.
 
Last update for 10.5 was in 2011, not 2007

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My Powerbook G4 flies with leopard everything turned on and really multi-tasking like putting up a 720p movie on the tv via HDMI while browsing the web or other things on the other screen.

How do you watch 720p videos? My iMac G4 is laggy with HD video.
 
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