Breakdown:- 1. Currently using a Feb 2009 15" Macbook Pro Unibody (It still works fine, but obviously the specs are getting dated and I need to upgrade) 2. In June 2012 I pre-ordered the new 15" Macbook Pro with Retina Display. I was completely in love with the screen (seriously, DAT SCREEN) but I maxed out the specs for £3,000 and it still had scroll lag. Not acceptable for £3,000 so I returned it (I really really really worried about doing it, seriously, DAT SCREEN and build quality were incredible). 3. New plan, wait for Haswell and get 15" Macbook Pro with Retina display in June 2013. 4. iMac released. Plan in state of chaos. I use my computer pretty much 100% at home on my desk. I don't need the portability of a laptop and maxing out the specs of a 27" iMac is cheaper. I am really concerned about the screen though. The retina screen blew me away and I plan to keep my next computer for 4 years at least - I'm concerned about buyers remorse on a non-retina screen at this stage. Help? I have no specific need for a laptop, and an iMac is cheaper. I was just so blown away by the retina screen that I am concerned about spending over £2,000 on a maxed out iMac only to regret the lack of retina screen in a year or so. I cannot afford both, and money is an issue so that's why I keep my computers for so long.