I have used this product from Lee Valley as under counter lightings 4 times in the last few months on kitchens we installed. We used the brighter stuff. It works quite good, and I like their connectors to hook to the strips (no more fussy soldering like we used to do).
The strips they sell are not covered in silicon like the waterproof ones.
In the past I have ordered from BolbAmerica.com, and have gotten great service, and great quality products. They have way more selection too. I have mostly bought from Lee Valley lately, as the product is in stock here in town, and they have top notch service should anything go wrong.
Here is a shot of some LED strip lighting in my upper cabinets. I put them in 8 cabinets, and plan for some in the under-bed storage area. A toggle switch in each cabinet controls them. What a great way to win points with the wife.