I have a 1.6Ghz PowerMac G5 running Mac OS 10.3.9, with 250MB of memory. I am tempted to upgrade to Tiger or Leopard because of the extra advantages with iPhoto and email. Peter Medhurst
The new iLife 08 (which includes iPhoto) requires OS X 10.4.9 (Tiger) or later, and that's a paid upgrade, so you might as well buy Leopard (10.5.x) for about £80. That includes email, but you will have to pay for iLife (about £55). You will also need more memory, and adding a gigabyte or more would speed up your PC. Go to the Crucial website (crucial.com/uk/mac), which will analyse your Mac and suggest memory upgrades: you can still buy the chips somewhere else if you want, though I've been happy with Crucial upgrades. But bear in mind that Apple has moved to Intel chips, so PowerPC-based systems like yours are on the way out.