CD ripping for the lower end.

I have a decent hifi system. I listen to CDs mostly. Thinking about going modestly digital just to test the waters. Right now I have an old iMac that will be my server. It is too old for all current ripping and cataloging software so it will probably be iTunes for ripping and playing. I will use Apple Remote on my cell phone which is a fairly capable remote at this level and works with the older version of iTunes on this old iMac.This is all probably commensurate with the entry level DAC I just got used off eBay, a Schiit Modi 2 Uber. I’ll get a Monoprice USB cable for it. I’ve got some high end RCA cables for DAC to Pre-amp.

If this works out okay and the SQ is tolerable I might step things up and use my MacBook Pro in which case I could get dBpoweramp for ripping and something to bypass iTunes for playback. Might even upgrade the DAC.

The first question I have is that for right now, what format should I rip the CDs to? Space is not a big concern. I’ve only got about 150 CDs and won’t rip them all. The primary consideration would be sound quality and future ’portability’ if I move up to higher end DAC and all that.

The second question is should I use my MacBook or new iMac to rip using dBpoweramp and then move the files to the old iMac?

Thanks for your help.

George