Few choices here some slightly over your budget
Agreeing with those sentiments!Obsidian series by corsair are over budget but all of them are steel frame and aluminium panels making them super sturdy. They also are incredibly well built aimed at the enthusiast.
540 gets my vote if you can stretch by 16 quid. It is a great case with plenty of rad space if you want to watercool. Even if you dont, this case is probably the easiest to use if you just want a no effort, neat build.
I said a plain side window
i think im going for the 750D guys, thanks for the help
bitfenix prodigy, had it over a year. Really good if you need a small/movable case.