Looking for good under-cabinet LED lighting.

You know those little round stick-on halogen lights that people put under their kitchen cabinets to light up their countertops? I'd like to get some LED ones, but the only ones sold at my local Home Depot use cheesy 5mm LEDs. There's gotta be something better than that available, but I haven't had any luck finding them. Got any suggestions?

I would prefer round enclosures if possible, because that would match the existing halogen fixtures I have now, but if that's just not in the cards, I guess strip-lighting works too.

Take a look at Juno Lighting. They have some new LED products that use Nichia LED's. I've seen some locally and they seem like a much better product than the LED's you get a Home Center.