I'm currently using a late 2006 2.6 dual core x2 mac pro w/ 8800gt and 4gigs. My main machine usage comes from Aperture/Photoshop/iphoto/Final Cut and yes....World of Warcraft More times that not i'm working in a 3 monitor environment with PLEX, Warcraft, and one of the photo/video apps each running on it's own monitor. I've followed as many of the posts concerning the 2009 single chip vs. dual chip threads across the various sites as possible, but it all seemed to boil down to the following upgrade choices given my budget: 1. 2009 2.93 quad core w/ 4870 for ~3200 (i'll up the memory to 8gig at a later date from macmall) 2. 2009 2.26 octo core w/4870 for ~3499 Unfortunately this year both models have some sort of "deficiency" IE the quad core is limited in terms of total RAM and future upgradability...the entry level octo core is limited in terms of it's single thread processing speed and it's comparable performance (thus far) to the 2008 octo vs price. For the apps that i use most, i don't think any of them are limited to just single threads....but i am not sure if i'm at the point where having 16 virtual cores at a lower clock speed would be all that beneficial to me versus 8 virtual cores at a higher clock. Now, i'm expecting either choice to provide a good performance increase than what I have today....but the way these 2 models now stack up has really made me think about ditching the whole upgrade idea Any words of wisdom out there? Thanks!