A friend of mine recently emailed me about the Poth audio-sold LiTe Audio DAC-Ah. He said it's great sound for the money. It's a good concept--parallel 8 cheap DACs to improve linearity. I haven't heard it, but at $175 I'm seriously considering it.
Another choice you may want to check into is the Ack dAck. They come up fairly cheap used, and are pretty good. I had an Ack! 2.0 for awhile and it was nice and smooth. Not the "vinyl out of digital" experience, and I preferred my Simaudio Eclipse LE's internal DAC, but it did do some good things.