RGBW LED Bulbs - Any competitors to Hue?

I have the Hue bridge and 3 bulbs currently tied in to ST. They work out OK. I am looking for bulbs that work like the Hue bulbs (can change color as well as white light and are dimmable) but dont carry the Hue price tag. I found some Zipato lights that work on the Z-wave standard, but they are more expensive than the Hue bulbs, and i am not sure how well they play with ST.

Does anyone know of any I can look in to?

There is this:

… But the integration is not currently possible because their gateway uses raw UDP sockets which SmartThings hub still does not support. Promises, promises…