Friends of our have this type of light over their island and it looks nice.
Here is a pic I found........
Here are a couple of other sites
purecontemporary a>

Here is a link that might be useful: S track light

Thanks but I'm looking for white shades.

I looked at this extensively. One thing that I found was that George Kovacs seems to be the least expensive option, however many people report that the system is dead on arrival, sometime multiple times for the same customer.

I decided to go with a line voltage monorail system rather that a low-voltage system which would require a transformer which may buzz, and which may be difficult (or impossible) to dim and which may burn out at some point in the future.

Also I specifically wanted lights that would look good hanging straight down, rather than being angled off to the side like the two images you showed.

I ended up going with Nora Rail lights purchased from arcadian lighting and used their 110% price match relative to the prices for the same set-up from Besthomesystems

Here's an image of how the lights look:
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There are quite a few manufacturers in different price ranges.
Techlighting
WAC lighting
Bruck Lighting
Translite Sonoma

You can look these up on different websites. I like Ylighting but they don't carry all the brands.

Good luck!

Did you see this type........you can change the color of the shade

Here is a link that might be useful: eurofase lighting

That's the same lighting I'm looking at for my soon to be new kitchen.
They sell a nice s-shaped track kit for under $200 at Lowes by Tech Lighting/Tiella.
I can't remember if the white shades come with a bronze track though.

Here is a link that might be useful: Tiella Sola Track Lighting at Lowes

Joanie - I liked to the same lights you're talking about! You'll have to let me know how you like it? I know some of these lights end up having a pink tint to it.

saskatchewan_girl - I saw those lights online at Home Depot but it got tons of bad user reviews.