@Errikos said:
In my comments I forgot about the early Core Duo chips. I have - what was an expensive iMac which will be gathering Internet dust sporting that chip, but I don't understand your comment about an "upgrade"... You mean that it would be possible to make a Core Duo chip work in 64 bits
Yes - this has been posted in several mac forums. Apple, if they so choose, can provide an upgrade to the firmware that will allow the Core Duo based Mac Pros to run in 64bit. Here's hoping..
Colin