If you can find an EVS Millennium DAC for sale, grab it. I use a Millennium DAC 1 with a Pioneer DVD transport with excellent results. Transparency, dynamics, soundstage, tonality, etc. are all incredible and a HUGE improvement over the DVD's analog outs and my previous modded Link DAC. If you're looking for something warm and tubelike look elsewhere, but if utter neutrality and hearing every last bit of recorded sound is what you're after I think you'd be hard pressed to do better(see owners' reviews on audioreview.com).
Unfortunately these have recently been discontinued, but if you can find a used DAC 1 or DAC II(probably around $400 to $800 respectively) you should jump on it. Best of luck.
Tim