I'm looking to buy a new desktop PC (definitely PC - although I like Macs as much as PCs, for a number of pragmatic reasons this one has to be a PC, and also not an all-in-one). What is current thinking on specs? My photo workflow mainly involves Lightroom, but I also use Photoshop and various plugins. While working on images, I usually have a considerable number of browser tabs, word docs, etc open at the same time. I already have a screen. In the past, I've always had machines custom-built in local shops. However, due to early problems with my current machine which the shop didn't resolve