Hi , I have been thinking the same about the duel 1GHz and Protools 24 and did a little home work. However I am not overly technical and I could only say that my knowledge is more Chines whispers than solid fact. My insiders insider tells me that there may be a problem with the Newer MD Macs as they have a 5.5volt PCI buss and the older macs have 3.5volt PCI busses. I have been told to look for a dual 1GHz QS for a more stable platform. Thats all, hope you can investigate further. GDSound -- ____________________________________________________________ Get 25MB of email storage with Lycos Mail Plus! Sign up today -- http://www.mail.lycos.com/brandPage.shtml?pageId=plus