Hi I have a near perfect 2010 2.4Ghz Unibody MacBook that I bought on eBay for £250 (they didn't realise what they were selling and had no OS at the time ) I've since upgraded to 8GB ram, and removed the optical drive replacing it with a 500GB 7200 Momentus XT with a 64GB SSD in the main bay, configured as a DIY fusion drive (and running Mavericks naturally) My parents have offered to go halves on a new MacBook Air for me (and they're getting one themselves lol) (Xmas & birthday and partial loan... my spare cash goes on the family) and I was wondering if anyone else has gone from similar? Will I notice a massive change? My main usage is iWork/Office and Creative Suite (Indesign mainly creating materials for work). My music is in iTunes match, and movies are better off on the home computer for the Apple TV. I do some light gaming (Football manager/xcom) and run VMs for work (XP). I'm now thinking that maybe my current system (which is quite a beast ) is probably enough, anything I'd gain from the new Air?