Help Identify A Track (and give me peace)

[madspider]

Any and all help pointing me in the right direction would be a gift at this point, and that person will be henceforth be subject to my eternal gratitude. A friend burned me a mix before I left town to travel the world, and I (predictably) lost the CD, but not the haunting refrains of one middle track... and I have no idea what it is. Hopefully some of you might know.

(I've tried searching permutations of the lyrics, but they're mind-numbingly common.)

So, it's a house track that was fairly popular in its day, if memory serves, about four years ago, or so. The lyrics are in a breathy, female voice, and go something like:

When nothing is something, it's all I need.
When nothing is something, it's everything.

You know it makes me smile,
you make me smile

All I need

And then more of the same. I think there may have been additional lyrics about having history with someone and just being happy being around them, blah, blah, blah; but this has been driving me crazy for months. Please help.

Anyone?