Hi all I'm looking to buy a MacBook tomorrow, and not sure which one to go for. The ones in my budget are: MacBook Air 13" MacBook Pro 13" MacBook Pro 13" Retina I'm new to Macs (having always had Window laptops) so not sure where to start. I like the thinnest and lightness of the Air, but for £50 more I can get a non-retina Pro. Does the Retina make much difference? I run a business off the laptop, but literally internet, spreadsheets, word etc, no major graphic-hungry applications. Thanks in advanced!