The pharmacy lamp is such a classic. I love the way it can transition into a very traditional setting or into a young hip modern space. It is the perfect task light. I really like them for a desk top too. The one here is from Pottery Barn.
Get one in the metal of your choice for a lamp that never goes out of style. I personally have a chrome one on my desk from Elte and it matches the chrome knobs on my white desk. It fits perfectly into my eclectic office space and I still love it!