I have just purchased my first G5 for what was essentially buttons from eBay. I removed the layers of thick dust/dead skin/carpet/hair from the fans, consigned the 160GB and 250GB hard drives to the bin and replaced them with an Intel 80GB SSD and a Western Digital 2TB. Installed Leopard and am now ripping all my music at 320kbps AAC. Using Home Share I can access the tracks from all my machines around the house including my iPhone. Perfect.