I don't have one but have just got back from a holiday in Finland where we had one in our suite. It was fab. If you find any, let me know. A swift Google has only come up with Maytags here. The one we used was a Hotpoint.
We just have enough space in a cupboard which houses the boiler (and hot water pipes). Just enough room for a standing drying rail plus a fixed rail above head height for hanging shirts etc. Can hold 2 wash loads easily and things usully dry within a few hours with just the retained warm from when the boiler is on.
http://www.iseappliances.co.uk/products/drying-products/dc158-drying-cabinet.html v costly though! this company was recommended by the man who mended my cooker after I was bemoaning the shocking cost of spares and how it's often not economical to mend appliances. They have 10 yr parts and labour guaruntee. But I guess a drying cabinet shouldn't breakdown anyway. According to them, it's more economical than a tumbler (but not as much as drying outside)