I don't know about better as that involves a lot of personal preference. But as I mentioned the Benchmark DAC1, Lavry DA10, Bel Canto DAC3, Apogee Mini-DAC, Apogee Rosetta 200 (also has an ADC), Mytek has a couple of models. Of these I have only heard the Benchmark, Lavry and Apogees, the others I am going only by specs and price. You really need to hear them yourself as in this price range they are all making compromises and you have to decide what compromises you can live with.
No one has heard the Buffalo32s DAC yet except the guys at Twisted Pear. I did score one which should be shipping next week, so stay tuned.