That machine should upgrade to Leopard quite well.
You have enough RAM and the processor is adequate.
Hopefully you will get answers from those who have made the upgrade on that type of machine
P
I am currently running Mac OS 10.4.11 on my Emac with one Gig ram w/a 1Ghz G4 processor. Anyone have any experience using upgrading to Leopard on such a system?

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