What worktops are you going for Hetty? Granite, solid timber, or laminated particle board. Wood or granite need an under mounted sink, whilst normal w/tops require a sit on. I will say that a Belfast sink, whilst looking good, has no drainer facility( separate ones can be sourced) and can be prone to spills down the front that can get you wet whilst washing up. They also have a tendency to spoil solid timber w/tops around the cut out area and need a tap, or taps, mounted in the w/top itself. Belfast sinks are not suitable with particle board w/tops. If you do not like the look of stainless steel there are some lovely composite sinks available, but I would avoid white and be aware that you cannot let boiling water run from a tap onto a composite sink or it will loose colour, or stain, in the area that the water makes contact.