It might not be the first place you'd think of looking, but Argos does have the odd retro gem lurking if you're on a budget, including the 1970s-style Chrome sofa and armchair.
Very much in that late 60s/1970s area, the kind of are companies like Merrow Associates and Pieff operated in so successfully. This isn't quite so high end, but it does offer the look for not a lot of cash – a chrome frame with black (or white) leatherette covering those foam cushions.
The two-seater sofa sells for £199.99, while the armchair (pictured over the page) is £129.99. There's also a footstool for the chair, that sells for £79.99.