I'm expecting updates this week to occur along with Paris Expo 9/20 - 24. Update possible tomorrow. Most of the time Apple increases the specifications and nether lowers or raises the price. The older version usually gets a lower price though.
Probably in the next couple of weeks. That'll happen when something isn't ready in time for an expo, or they just release a minor speed bump or price drop. PowerMacs are more than likely next up, but if we don't see updates to either by early November, it isn't happening until mid to late January.
Expectations of a price drop on Apple products is like patiently waiting for President Bush to acknowledge mistakes relating to the mess in Iraq. Anything is possible, but I hope you can hold your breath for quite some time.
everyone is trying to figure out when these updates are going to happen. We'll see what happens during this Apple Expo, we are 2 days into it, and we have gotten nothing. I'm hoping for the best, expecting the worst to happen.