This is the product I use (the linear);
http://www.junolightinggroup.com/splash_juno-linearLED.aspI have yet to have a problem with the transformers.
From JLC awhile back (I am not about to retype it);
http://forums.jlconline.com/forums/showthread.php?t=43010&highlight=cabinet+lightsJuno has added more items to the line since the JLC post.
This is Seagulls linear lighting;
http://www.seagulllighting.com/Linear-Lighting.htmI believe Seagull also markets a LED module.
Both the above are 12 volt AC.
I prefer linear lighting for balance, disc lights can cause "hot and cold" lighting patterns and shadows.
LEDs are cool to the touch and consume very little power, do not use a halogen bulb in a cabinet.
Any fixture/light installed per the NEC must be a listed fixture (UL) if your AHJ has adopted the 08 NEC.
When I have time I will up load some pics for those of you who are not members of the JLC forum.
You will find other LED lights to fit your needs if you search the manufactures pages I linked.
John mentioned Dekor lighting this is their web site;
http://www.de-kor.com/index.htmlTheir Millennium indoor recessed are what you will need to look at, be aware they need a false panel to be installed in. I am not certian what the beam spread is, you will need to know this to install the proper amount of lights. Great deck lights, have yet to use them indoors.
All of the LED's come in various kelvin temperatures and wattage's, there will be one for your needs.
http://en.wikipedia.org/wiki/Color_temperature4100k is my preferred in most situations. You describe yours as accent lights not task lights so the 3000k range should work for you.
Tom