Rebekah Zaveloff Rejuvenation.com has lights similar to this, and shades too - but you have to put them together yourself. You pick a fixture and then a shade.
Or try Hudson Valley Lighting.
We opted against a sink in the island - because we knew we wanted it to be party space, not prep space. However, if you envision using your island more for actual work vs. play, a sink is a smart addition.
island with black top, white base and dark chairs. see also the enclosed link; http://st.houzz.com/simgs/0f21a0880d529fe4_7-6025/traditional-kitchen.jpg
Not sure I like this look