DAC's, i'm lost


I recently purchased a pair of PSB Synchony two speakers along with an NAD 375BEE amp from my local dealer. My audio source is currently my laptop/an airport express. I'm looking for suggestions with DAC's. My budget is 500 and can be persuaded to spend no more than 1000. Please, help a newbie figure out what would work best!!!
mcgarrjr
There is much to chose from in the sub-$1000 range. Look into:

HRT Music Streamer II Plus ($349)
Cambridge DAC Magic ($429)
Simaudio 100D Dac ($599)
Musical Fidelity M1Dac ($699)
Rega DAC ($995)
Peachtree iDac ($999)

All these units have received positive reviews and user feedback on various forums. Hope this helps narrow the selection down.
Eastern Electric Mini Max $750.00.

MHDT Paradisea Havana $600.00.

Audio Mirror Tubadour Mrk II $1000.00.

Good Luck, Lets us know what you do.
I have the Moon 100d ($599) and am very happy with it. The other I'd be looking at is the Wyred 4 Sound DAC-1 ($999), if I were to spend more. But as others have said, lots of choices.