Ok, I am driving myself to insanity over the last couple of days. I am buying a new Mac Pro. Going to max it with RAM (16 GB-3rd Party) & HDD (3 1 TB - 3rd Party), the Radion Video Card. Completely stuck on processor. I will be using Adobe Premiere, Photoshop & Lightroom on an everyday basis (owner of wedding videography/photography business). 95% of current video work is SD. Choosing between the single 2.93 or dual 2.26. Right now, I am running 32 bit XP, Pentium 4 D 3.4, with 3 GB Ram. Now, I've seen all the speed and bench test on the Mac Pro Processors. And to me, I cannot justify getting the 2.66 or 2.93 dual. I mean, those test results are in seconds, and they are pretty much a couple seconds different on every test. To me, not worth $1400 or $2500 to upgrade. So my two main questions are: 1. Which processor - single 2.93 or dual 2.26? 2. How much faster will this be with than current system? Looking for honest opinions, because I cannot search any more reviews and read any more speed test. Thanks.