First, the colors you use should very closely match the colors of the Tuscan landscape. These are colors such as rich gold's, earth tones and sometimes even tones relating to the sea. These colors will give you the look you're after. If you're able to purchase some Majolica pottery, either old or new, you should use the colors on this to influence the colors of your walls and floors. It's important that you use natural materials like stone, slate, granite or terracotta for the flooring and countertops. This will help to greatly enhance the Italian look and feel you're attempting to create.
When looking for lighting for your Italian themed kitchen then think old world and steer well clear of any new or modern styles. Why not see if you can get lights that are made from antique wrought iron. But you can include recessed lighting for use as task lighting. It is important to get the right look for an Italian kitchen that you stay away from lights that have a shiny look, instead stick with those that have muted metal finish.
It is very easy to buy accessories for your Italian kitchen theme brand new today, but why not take time and scour your local antique stores for some real antiques instead. If you can look for old pottery bowls and pitchers as well as wooden bowls that have been painted or antiques. As a nice addition to your Italian style kitchen include some Majolica ware. Why not buy a whole set of this pottery to be have for everyday use. It is vital that you include lots of decorative jars in your design that have either peppers and ropes of garlic on them or peppers and grape vines on them. Then to soften the look up a bit use lots of greenery (herbs in pots are a good idea).