Firewire DAC with best soundstage for $500-1000


I'm looking for a dac to connect to my MacMini music server that excels in throwing a clear and big soundstage - and is on the warm side (e.g. removes digital hash).

Suggestions?
cdc2
Firewire based DAC's do not exist at that price point.

At that price point I would be looking at an Audio GD DAC:
http://www.audio-gd.com/En%20audio-gd.htm

Thanks
Bill
Have you tried upsampling your music to 24/96 using an izotope based program?