Tambour cupboards are a recent addition to office furniture ranges. Their key feature is that they have roller-shutter type doors that roll into the side of the cupboard. This makes them much more reliable and user-friendly than the type that roll upwards into the top of the cupboard. Because the doors roll into the side of the cupboard they take up much less space that traditional filing
This question is very difficult to answer as it depends on so many factors. The range of pricing in the office desking market varies from less than £100 for a rectangular 18mm thick melamine desktop supported on the most basic of square steel tube frames to over £4,000 for a hand built wood veneer desk built in the traditional way by experienced craftsmen.