I have a 27" iMac that I just bought refurb. but am thinking of returning it for a new 27" iMac. I am trying to decide between these 2 options in case I do decide to get one. I know the Core i7 costs $200 and the video card upgrade is $150. I would like to install Windows 7 on it for games only so I would like your opinions if going with the video card upgrade is worth the $150. I am leaning more towards the video card upgrade than the CPU upgrade because it doubles the VRAM and you get a slightly better GPU and for games I think it would be an improvement although how much remains to be seen. What do you guys think? The third option is to leave the $1999 model the way it is and just get it without BTO. I am also trying to decide whether the improvements in performance are worth the extra $400 - $600 I'd be spending on the new iMac over the refurb iMac. The iMac I have is a mid-2011 27" 3.1GHz Core i5 with the AMD HD6970 1GB graphics. I didn't see any benchmarks for the GTX 680MX on notebookcheck.com so I'm curious to read your comments.