Recommendations for Windows software to go with a Ayre QB-9 DAC

I am looking at buying a very clean Ayre QB-9 DAC and starting my Digital music collection. I know that there are several different programs out there for running your digital music library. I wanted to know if anyone has one that they would prefer over another? Once I get everything set-up and running correctly I plan on buying probably only FLAC. files or if I want, this version of player will do DSD.
Any suggestions?
Thanks,
David