I prefer the simple white trim on recessed lights ... I want them to blend with the white ceiling as much as possible. We have started replacing our 12 yr old recessed lights with the CREE LED retrofit kits. You can get some CREE products at Home Depot, but you need a lighting supply shop for a wider selection of their products. The CREE LED's put out a nice light, use less energy, produce less heat and can be dimmed.

What color is your ceiling and how high is it?

I actually like the white and the cleaner look they give. I am in the process of pulling out the gold ones that were in the house when we bought it. The process started out of necessity when the rims started crumbling when changing a light bulb (they were probably 20 years old). We wound up using the LED bulb/rim combinations. They have such a clean look -- I discovered I didn't like the darker hole look, and the light in the ones we got is such a nice clean white. I have already noticed that we are getting more light and less heat in our kitchen, so that was going to be my recommendation when I was anticipating your question. That may not help in your situation.

Chispa posted while I was typing (slowly, and watching the Olympics). The CREE ones from Home Depot are the ones we got.

My ceiling is 10 foot, I am painting walls and ceiling BM Thunder which is gray, I have crown molding about 4 inch and base boards are 6", those are white...I had my ceiling fan painted the same gray color. I wanted to keep things calm for lack of better word. I told my GC that I wanted them to be covered but he says that it doesn't give off as good of light, which probably is so since there is no reflection. This is my master bedroom. There is six can lights in room along with reading lights over bed area, guess there will be lamps on the bedside tables (don't have them yet). I am so worn down from this that some days I could hang Christmas lights in there. Six months on this remodel of bedroom, closet and bath. I am pretty close to DONE....you know I should have covered, how much light can I need in there.