I have an opportunity to get a Late 2009 27" i7 (2.8 Ghz) for $1699. I've been looking at the $1999 i5 (also 2.8 Ghz). I know it has a 1Gb Video Card, compared to the 512 MB one on the 2009 i7. My basic question is, is the i7 worth the lesser video card and cheaper price, compared to the i5 with a stronger video card? I do a lot of work in Photoshop and iMovie, as well as Illustrator and inDesign. I also will be playing TF2 heavily, and heard that the i7 was great for video and gaming. Thanks for the help, I'm in the market for an iMac since my Late 2006 Macbook Pro is on the verge of death.