Help me buy my next DAC


I currently have Musical Fidelity V-Dac/2. I'm looking to upgrade and these are on my short list. My needs in a DAC are playing internet radio from my computer to my main audio setup. Also playing digital music from my hard drive. Here is my short list: Wadia 151 Power Dac Mini- Musical Fidelity M1 DAC- Sim Audio 100D DAC- Emotiva Stealth DAC

Any and all help would be truly appreciated. All recommendations would also be appreciated.
krelldog
What type of files on the hard drive? What do you play them through? For internet radio the V-DAc serves just fine.
Thanks for all the above replies.

Needfreestuff- The Meitner is way out of my price range...but thanks for the offer.

Just to clarify...Most of the DAC's I listed were above the 1K price point and now being heavily discounted in the 5-600 range. The files I need converting are the typical cd's I burned to my hard drive or mp3's. I also enjoy listening to Pandora and Sirious/XM. I don't neccesarily need it to be a pre amp...but if it does it would be a bonus. I'm really just looking to get the best bang for your buck DAC in the above stated price range (500-600)

Thanks again for any and all suggestions.
Parsound Zdac has the newest and latest technology for less than 500 to replace my MF vdac2 also. It's like day and NIGHT. WOW.
The DB Labs Tranquility dac can be had used in your price range. Great sounding dac as long as You don't mind just USB