Ive been reading a lot of the reviews here and it sounds like all I need for what I use is the C2D processor. However, I already have a late 08-early 09 MBP with the 2.6 GHz C2D chip and sometimes it slows up a bit when I run a virtual machine | iPhoto | Garageband | Adobe CS... My typical usage is mostly Photoshop and the Adobe suite along with iPhoto and iTunes always running. I also do some developing and video once in a while. I keep trying to justify getting the QC for future proofing, but I would love to save 400 bucks and get the C2D if it fits my needs. Would any users who bought the C2D iMac chime in and let me know if it meets your needs or if you wish you waited for the QC?? Also, is upgrading the chip at a later date even an option? I noticed some threads on upgrading to an SSD is possible, so I would think the chip could also be swapped unless they solder it on. Thoughts?