At the end of the month I'm going to Canada and would like to get a new 15" MBP where they are MUCH cheaper than buying in NZ, but I'm a bit torn as to whether to get the base i5 model or the i7 model, so would love some suggestions from you guys based on how I currently use my laptop:
1. I use a 2009 13" MBP connected to a 27" Cinema Display as the primary setup - does having a discrete GPU matter in this respect? If so, is 256MB or 512MB better for powering the display or doesn't it matter?
2. I'd like to keep it for several years before looking to upgrade again.
3. I don't do any intensive work on it. Apart from the usual email, web, documents, etc, I do a bit of work in iPhoto and iMove 11, but no Photoshop or Aperture or any plans to use them. No Handbrake or anything like that either.
4. I have a Seagate Momentus XT HDD which I'd put into the new laptop.
5. Based on my usage would I even notice a difference between an i5 and the i7? Is it worth the C$400 difference?
6. Or, based on my usage would I even notice a difference at all going from my current laptop to the base i5 model?! I'm guessing at least the i5 would be better for the longterm.
Thanks in advance for any suggestions!

