I'm debating whether or not I want to go with a Core i5 with the 1ghz graphics card, or if I want to bump it up to an i7. Will hyperthreading really be that noticeable when working in Photoshop or Illustrator? How will it affect performance? Would I even be able to notice that much, coming from a CoreDuo Macbook Pro? It's kind of hard for me to justify an extra $200 (for an upgrade that in other computing realms, is what, $80?). Photoshop and Illustrator are the only really intense things I do on the computer, aside from gaming, which obviously, won't really benefit from the i7 (as far as I'm aware). What do you think? I should add, that there's a possibility that I'll be financing this iMac, so the difference would probably be an extra $20 a month (but still $200 in the long run). In 4 or 5 years, when I'm looking at new iMacs, would I be kicking myself for not going i7, or is it really just splitting hairs at that point?