Hi, I was happy with the iMac 3.06 with the ATI Radeon HD 4850 GPU except with the freezing issue, so now I am looking at MPs instead going to down to the 3.06 with the GT 130 GPU. I am just starting with video editing and Photoshop, nothing professional at this point. I do game though, so getting the ATI Radeon 4870 with the MP is a definite! I figure the 2.66 Quad is more than good enough for me at this time, but regarding future proofing and lower memory prices (8 slots versus 4 in the Quad) with the 2.26 Octad for $700 more is intriguing option. In a few years if I decide to sell, would I get more (higher percentage) with the 2.26 Octad or the 2.66 Quad, or perhaps the same? I realize we are trying to predict the future, but what does past data say?