No more waiting!
As with the rest of us, I waited for MWSF to hear of any iMac upgrades. There were none, so it's now time to move on. I received my Crucial 4GB memory kit via FedEx yesterday (aside: I have no idea if Crucial is better than OWC, but Crucial's free shipping is VERY fast). I'll be getting my G-Tech external drive today. Tomorrow morning I go down to the Apple Store and get the 24" iMac.
As previously posted, I don't think Apple will be upgrading significantly soon. Sure, maybe the Penryn chip, but will I be able to notice the difference? Now the Nehalem chip will be worth waiting for, as its architecture will be quite different.
To MARK COMBS: I followed your link to the MacWorld article, read it, and did not come to the same conclusion as you. Maybe I missed something, but the iMac 2.8 is still quite slower than the new Mac Pro, which is as it should be.
So wait if you want to, don't wait if you don't want to, or follow the rumors and never get anything done. The iMac as it is now is one nice machine. We must all think that or we wouldn't be here reading this. Good luck!
Morod