Hi guys! Longtime reader, first time poster. I'll be buying my first MacBook in 10 days, and i'm still undecided on which to buy. It's between the 13inch Retina base model and the 15 inch non retina base model, as my absolute top budget is £1500. I'm in my final year at university, and other than the usual word processing, presentation stuff and web browsing, I also produce music using Reason and will be (hopefully) designing a product using Photoshop. I'm also a download quite a heavy downloader, but I will be buying an external HD regardless of which Mac I buy. I would really appreciate your opinions!