Hey everyone. I know this concerns an older machine, but I was hoping to get some solid advice on this subject. I have retail copies of both Tiger and Leopard for my G4, and my OWC order just came in the mail, and after tearing it down, cleaning it up, and throwing a new 160Gb drive and 1Gb of memory into it, the machine is feeling extremely responsive under Tiger. My question is thus: everyone seems to think Tiger's days are numbered, which I can understand when you consider it's age. But how numbered are numbered? Safari and iTunes are still supported up to the current versions, Camino is still supported on 10.4 so when Firefox drops Tiger support I'm not without a Gecko based browser, and the other software I plan to use on this machine (iLife 06, OpenOffice, JDarkRoom and some old games, primarily) are all still good for Tiger. My primary concern stems from the web browser issue, but more importantly, internet security on this machine. It's on a wired connection behind an AirPort Extreme so I don't know how worried I need to be, but last I checked security updates are not coming down for Tiger anymore from Apple, thus would the iMac become a potential target running Tiger? I don't want to be running bare arsed to the wind, if you'll pardon the expression. So I was hoping someone with a better understanding of software security could explain differences between Tiger and Leopard and wether or not that's a huge deal. I'm tempted to stick with Tiger, because now that the upgrades are in, it's lightning fast. Almost as fast as the MacBook fast, which is impressive from an eight year old machine. Any feedback would be greatly appreciated.