I need to substitute my late 2007 MBP, and I decided that I'll switch back to a desktop computer - a.k.a. iMac. But I've been researching the last iMac updates and realized that, despite the advances in processor speed (Core 2 Duo to i3, i5 and i7) and in RAM speed (1.066 to 1.333mhz), the basic specs remain the same for the entry model: 4GB RAM and 500GB HDD. It´s been the same for the last 3 "generations", since the introduction of the unibody model, 2 years ago. So I wonder: should I wait a little more? I fear buying an iMac now and, in 9 or 10 months, see a 8GB RAM and 750GB or 1TB HDD becomingo available as entry model. I really need to replace my MBP, but maybe I can try to hold on a little longer. Thanks for any tips!