If you are as obsessive as I am about kitchenalia, you must visit GanveteriaROCA in Barcelona. This store has all the sharp objects (and some not so sharp ones) for your kitchen needs. I bought some beautiful accessories for eating lobsters here but there is so much more to choose from.
The store which has been around since 1911, is like an old-time hardware store where all the stock is held in drawers behind the counter. However there are many items on display in the windows. The staff are very friendly and helpful (at least for those of us who have only rudimentary Spanish) and pointing things out from the window displays is a godsend!
GaniveteriaROCA, Placa del Pl,3, 08002 Barcelona http://www.ganiveteriaroca.cat/ca/aparador/index.htm