Get a Mcintosh and use iTunes. It's the easiest and best option. You can go with a G5 desktop with a large hard drive. It has an optical digital out. But what I would recommend is get a basic iBook and a large external hard drive (I would start with at least 200 GBs, you can always expand the storage space in the future by simply getting a larger hard drive). The iBook takes up a lot less space than the G5. You don't need a ton of RAM since presumably all you will be running is iTunes which comes with the iBook and will meet your needs perfectly. When you rip or play a CD it connects to an internet database to look up the album info and enter it for you. You set iTunes to rip the CD to the external hard drive and turn off all of iTunes default equalization so the sound is not touched. With the iBook you can output through the headphone jack (the lesser quality option, but still adequate) or use a USB DAC which is the better option (there are a few currently available, but more on the way soon). Wavelength Audio makes a great tube-based, zero sampling USB DAC, but it is pricey ($3500). There are far cheaper USB DACs available.
This system is not expensive and is easy to use, fully expandable and very convenient. I've set this up in my home office and have really fallen for it because it is so convenient. I can play any CD instantly.
This system is not expensive and is easy to use, fully expandable and very convenient. I've set this up in my home office and have really fallen for it because it is so convenient. I can play any CD instantly.