Not all. I have an Intel iMac and all my OS X apps run without problem. The only thing you CAN'T run is Classic apps, which I don't use anymore. On Thu, 10 Aug 2006 11:51:18 -0500, <janesprando at comcast.net> wrote: > I was going to buy another G-4 since they have come down in price with > the > introductions of MacBook. On the other hand, maybe I should buy the > latest --- > but then wouldn't I have to upgrade all my software for the Intel > processors? > That could be very expensive. -- Ron