Haven't used any yet, but this company's products are still on my list (along with some non fluourescent choices)

Pegasus Associates Lighting

Bruno

We used Juno - got it at Galaxy in Cupertino. We mounted it in the front. We had been forewarned (by catluvr I think) that if we mounted it in the back, we'd see the fixture. It was true - when seated on the couches in the family room the fixture was visible when mounted at the back, but not so when mounted against in the front against the light rail. The light is good, and it reflects against the backsplash, lighting up the decorative glass tiles. We like it.

A follow-up to my original posting.......
We ended up using Crescent Slimlyte Plus (SLP). They are 5" wide (so a bit wider than some of the other lines) and 1 1/8" height (so pretty thin profile). They use a T5 lamp.
We bought them at Independent Electric Supply, an electrical supply house in Sunnyvale.
Just to give you an idea on the pricing:

12" L $14.05
21" L $28.62
42" L $36.00

Lamps are included.