What’s the best PC for video editing for £1,000?

Johnny's 13-year-old daughter needs a new PC for Adobe's Premiere Pro costing about 1,000. What are the options?

My 13-year-old daughter is showing a real interest in, and talent for, video editing. We got her a student subscription to Adobe Creative Cloud so she could learn and use After Effects and Premiere Pro. Our three-year-old laptop is just about coping with the demands of the software, but as she becomes more proficient, I know it will struggle or give up entirely.

What would be the best solution - either laptop or desktop - that will also last a good few years? Our budget is around 1,000. I was considering building a PC to suit, but not sure if this would be a step too far. Johnny

There is a growing interest in video editing, possibly because video is becoming ubiquitous, and cheap. You no longer need to buy a video camera, a projector, a screen and a cement splicer, which is how we edited home movies in the old days.