What's new since the MSB Link DAC III?

I got an MSB Link DAC III and installed an upsampling chip a little over a year ago. I've been very happy with it but I am wondering what (if anything) would be a reasonable and noticeable "move up" from this unit. I have not been keeping up with new products for over a year now. If anybody out there has been keeping up and could reccommend any other DAC's I would appreciate it. Price is not a big concern but I would like to keep it under $1000.00 or so. What beats the MSB in this price range? Any thoughts?