I use a lot of the Seagull ambient LV lighting. A #10 zip cord snaps into a low profile track and I put a 2 bulb fixture with 2 5 watt bulbs at each end and about every 12 inches. Customers love it!
Some notes: The zip cord is not UL rated so you cannot run it inside walls and a connection to NM cable is necessary.I use crimps and a telephone jack box with the guts removed. Rather than paying $100+ for their xfmr. I sometimes use the $39 151 watt xfmr. that HD carries. That's my input on over counter lighting.
Bob
