Below is the best bag for buck pre-built gaming PC with moderate spec I could find (in the UK).
You'd want to buy a decent mouse & keyboard, and ideally pair it with a 1440p monitor (with a 120+ hz refresh rate if you can).
All-in considering the above, you're looking at a grand.
HP Omen 25L...
@Bozza if you can give me an approx budget, I’ll find you some good options.
And if you know what games he/she plays, and if you’ve already got a monitor or not, that’d be helpful too.
Would you be interested in building one together, or prefer to buy a pre built one for ease?