I am debating between a 3.2 GHz i3 imac or a 2.66GHz quad core i5. The quad core is 100 dollars more than the i3. I would be multi-tasking such as: surfing the web, excel, eye tv, and buring dvds, along with matlab, and photoshop.
Would the i3 do? I could also upgrade the i3 memory or graphics card?