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.
bins built in to the island! yeah! especially if we end up with minimal pantry space!
also, i like the mixture of brushed nickel hardware with oil-rubbed bronze on the light fixtures.