Hello and Pryvit to all my Ukrainian friends out there.. I currently own a 3.0(close to 3.2 in speed and performance) mac pro. It has 8GB of memory and two optical drives using the odd ports. I also have the radeon 4870. I just made the jump to a 2009 mac pro by selling my current one for 2000.00. My question: Did I make the RIGHT choice of getting the single 2.66 quad core? Before you all lambaste me let me explain what I use my mac pro for: I primarily got the mac pro for its expansion capabilities, meaning to allow the computer to grow with my needs. I am a single 23 yr old individual that does no pro apps what so ever. I use my computer as a PC, meaning - I run Windows 7 bootcamp and play hard core games on it. I know I would be better off with a PC, but I really did get a great deal on this 2009 model. Since my Harpertown 3.0 was an 8-core I decided that it was too much overkill for my needs. At first, I looked at the 2.26 and then decided not to go with that as it is very slow and compared to the 3.0 harpertown I still have in single threaded apps it would appear the 3.0 is faster in clock speed and cores. Now, my out a pocket expenses were only 150 + tax with the guy buying my 2008 3.0 mac pro. Can someone tell me based on my everyday usage of the computer that I did the right choice by going with Nehalem or even a 2009 mac pro? Again, I don't use audio or video pro apps.. I might delve into light video editing and rendering, but nothing VERY EXTREME. One more question.. If I manage to find a tray with two processors on it(say 2.26 or 2.66), are the trays interchangable? Meaning, can I take out the single 2.66 quad core tray and replace it with the dual tray? Here is an outline of my current uses with the mac pro: Sending, reading email Hardcore gaming Windows 7 - apps and games Mac OS X Microsoft Office I do use quicktime pro for some rendering, again - nothing really significant requiring me to get the 8-core(16 cores virtual) machine. And other everyday stuff. So, how about it - did I do a mistake by getting rid of my 2008 Harpertown 3.0 ghz mac pro for the 2.66 quad-core single Mac Pro? The 2.93 was a bit too steep for me, otherwise I would have gone with that.. but even with turbo boost, the 2.66 goes up to 3.00 which matches my current machine.