I currently have a 2010 MBP C2D 8GB of ram and it's slowing down for day to day tasks (and the hard drive is about to fail) especially handbrake and fps when gaming. I read a lot of PDF files for work and present keynotes slides basic photo video editing etc. When at home I play windows only games as well as work in Linux via parallels 6. I was planning on selling the MBP getting an iPad to read PDFs in iBook and read notes I take in evernote. Get a 1.8ghz 4GB ram MacBook air for notes quick editing showing presentations and some windows and Linux work in virtualization and getting a new iMac for intensive editing handbrake and virtualized gaming (games are strategy somewhat CPU intensive not too graphic intensive). The only thing I can't decide on is what iMac to get is the 27 inch worth it? Is there a big difference between the base and 1499 modol that would be very noticeable for me? I would like to keep these for four years or more but haven't had very good luck with that lately.