Hi. I'm new to the forum and hope I can pick the brains of the experts. I'm looking at taking the plunge with a Mac for the first time. I think the 27" may be a bit large so I'm looking at the 21.5" 4K. The only thing I will need power for is photo editing. I would use Canon's Digital Photo Professional to edit raw files ( no business use) and may get Lightroom at some point. The raw files are around 20MB. I also plan to scan old prints and negatives and do minor adjustments to them. Other than that it will be used for general surfing and e-mail. No gaming and if I did edit any video it would be minor editing of short phone or camera clips. I am aware the HDD is only 5,400 rpm so is relatively slow so am looking at upgrade options. For an extra £400 I can either get a 512GB SSD, and keep the RAM at 8GB, or a 2TB fusion drive and upgrade the RAM to 16GB. Whilst I am happy to pay for quality and believe in buying the best I can afford, there is only so much I can justify for a computer. I am inclined to think the fusion drive and RAM upgrade would futureproof me for a few years but would welcome thoughts. In addition, I have been searching for the answer to this without success; would the 2TB fusion drive in the 21.5" be 5,400 rpm or the faster 7,200 drive, as I believe this would make quite a difference?