DAC for entry level system


Hello,
I have an entry level system.
Speakers: Vienna acoustics Bach.
Plinius 8100 integrated amp.
Arcam CD72 player.
Logitech squeesbox touch.
I would like to buy a DAC to my system(prefer used to get more for the money), but I don’t know what price level of DAC will get me much better result compare to the internal DAC that I have now in the Arcam and the Logitec. Will(example of price groups) $179 HRT music steamer II will do it? Or $379 Musical fidelity V-DAC MKII, or $649 Simaudio 100D, or $995 Rega dac.
Thanks.
bedel
Take a look at the ODAC sold at JDS Labs. There are a number of reviews on it, especially in the headphone forums. For the hefty price of $150 you won't be disappointed.

Unless I'm mistaken, the ODAC is a USB DAC only.
Thank you Detredwings. I'm not familiar with the ODAC, and I'll read about it. At list it's good starting point due to the low price.
Thanks Darkstar1. It's interesting to read that the V-Dac was "competing" with the Rega that coasts more than twice.
I'll try to get few units and get a filling for what I should expect to get for different price level of DACs.
whatever dac you get suggest you get a decent digital cable between it and your transport - it will make a difference
Tonyangel,

Yes the ODAC only has a USB input. No frills, but the sound is good.

Darkstar1,

The HRT Streamer II+ is something I may also have to try.
It seems to me that you are looking for a DAC that will serve both the Arcam and the Squeesbox, and therefore looking for 2 SPDIF inputs. Is this true?