MF V-DAC and power supply

I know this is a very elementary question for most of you buy I'm hoping you will help. I have a pretty good basic system with:

1. Cary SLP-94 Preamp
2. Balanced Audio Technology VK200 Amplifier (SS)
3. Tube Audio Design 60 Amplifier (tube)
4. Rega P3-24 with TTPSU, upgrade subplatter (Groovetracer) and counterweight (Mitchell), Herbie's mat, Clearaudio Virtuoso cartridge
5. Cambridge Audio 650 CD player

I want to get into PC audio, so.......I ripped all my CDs into Itunes Apple Lossless. And now am at a loss (less)

I am thinking about buying a Musical Fidelity V-DAC with a power supply upgrade and using it to to play the files through my system. My questions:

1. Is the MF V-DAC good enough? That is, will I be satisfied with the sound through the system that I have or do I need something better?
2. Do I need to do anything other than hook the V-DAC through the usb port on my laptop and hit play? Or, do I need to do more in relation to lossless or to playing the damn thing?

Thanks for any help you are willing to give.
6. Acoustic Zen Adagio Speakers