NAD 541 + DAC upgrade question

Well, after buying everyone I know presents, I'm left with little "coin." I'm not complaining BTW because I really do believe it's better to give than receive.

Anyway, all of this consumerism is leaving me with an upgrade itch. So I want to see if it's possible to improve the performance of my NAD 541 CD player by adding an inexpensive DAC.

Any recommendations?

What do y'all think of an MSB technology link dac III/NAD 541 combo?

I have about $200 to spend.

Thanks everyone!
David