I just installed 15 LED can lights from Commercial Electric (Home Depot). These combine with CFL, linear fluorescent, and a few halogens. I use the halogen light bulbs where pretty lighting is the most needed.
All in all, I'm happy with the energy efficient lighting. I go into tier 3 on the electric bill frequently and this lighting savings comes off the top. While the LEDs and fluorescents don't look quite as nice as incandescent, they are decent enough. I substitute CFL into a fixture till I get the best look I want. Best of all the house can be lit up in a cheerful way-five lights for the consumption of one incandescent.
Using the LED, CFL in interesting lamps/shades help conceal the lamps less than perfect color rendering. I suspect LED will be replacing more of the CFL in the near future.
