I had no problem finding multiple sources for LED strip lights of various colors. Our electrician had samples of 5000K and 2700K, both of which we hated. The 2700K was so warm. In fact I can't imagine even warmer lights. The 5000K was way too blue white. We ended up getting something between 3500 and 4000K (I can't remember) from a local lighting store. They also lent us samples so we could test them at home with our counter and backsplash samples as well as in our cabinets (we're using it for in-cabinet and undercabinet lighting). The intensity of the light also makes a huge difference in how the color appears and even such minor details as the background color of the strip. We found the white strips to seem brighter than the copper colored strips (I assume this is a reflection issue)? So your best bet is to find a place that has lots of options. I'm linking to environmentalights.com which is just one of many places that has several options (and you can order somewhat expensive sample kits if necessary). There's a ton of discussion (much of which was way over my head) on the lighting board about LED strips too. Here is a link that might be useful: Environmental Lights

You can also buy the plastic plugs in a coordinating color. They aren't invisible by any means, but they do reduce the obviousness of the holes while still giving you the option to move the shelves easily if you ever want to rearrange them.

If you don't have glass shelves you'll need lights under each self. Otherwise the top shelf will be lit and will block any light getting to the rest of the cabinet. My glass cabinets came with wooden shelves and we special ordered glass ones from a local glass shop, which were delivered a few weeks later. The lighting looked pretty bad until we got the glass shelves in.

Thanks for the replies..... The reason I thought of this is due to the green coloring of the glass shelves..... but I can forego!