The "problem" is, if you want interest free, its not really THAT easy or it never used to be.
Ive bought from these in the past.
https://www.meshcomputers.com/ I had no problems, but they get very, very bad reviews, I probably wouldnt risk it again, but they do interest free.
I normally get my PCs from https://www.ginger6.com/
There is no such thing as future-proof, although a PC for 2 grand should be dealing with most games for a good few years.
