Rumors circulated that Apple was going to introduce a new enclosure for its first Intel-based Mac Pro desktops. But according to AppleInsider, the Mac Pro will only sport a slightly modified casing from the Power Mac G5. People "in the know" claim the differences between the Mac Pro and Power Mac G5 casings is cosmetic - mainly the addition of a second optical disc drive slot on the face of the Mac Pro.

But the first Mac Pros will most probably ship with the additional optical disc drive slot and bay empty so users can choose to fit it with either a Blu-ray or HD-DVD drive. The other "cosmetic change" is that new Power Mac's power supply has been moved from the base of the unit to somewhere higher. At least that's what AppleInsider sources said.