OK well as I say, probably looking at a business level switch would be best as the Small home ones tend to have external PSUs to keep their size down, most business ones will have a standard "Kettle Lead" input so as to be used in a rack enclosure with a 32A (or similar) power bar.
http://www.scan.co.uk/Products/Produ...oductID=152528
" Internal universal switching power supply"