Help me set up new stereo system

Right now all of my music is on my MacBook Pro that the whole family uses for general use. I'm open to suggestions as far as buying a PC and external HD, and also to buying a Mac Mini. I'm really just looking for some guidance. Every place that I went to demo speakers was awesome, they would pull out an iPad and ask what I wanted to listen to....amazing. Gone are the days of having CD's stacked from floor to ceiling.

At least 85% of my iTunes library is AAC and purchased AAC. Since I threw out all my CD's years ago I have asked family and friends if I can borrow their CD's and re-rip them. Question is what to use to rip them, will iTunes now have duplicates in the library, do I use something other than iTunes, etc.

Thanks for the help. Have a decent investment in the Revel speakers and Hegel integrated and want to get the best sound I can.

The Hegel h300 has digital, analog and USB inputs.

I agree that my library is low quality. But I want to change that and it does not need to be an overnight thing. I don't mind building up my library into high quality/high resolution files. If I need to use my Oppo BDP83 player for a while and buy a few CD's that's OK.

It's really looking ahead, what is the best way to have high quality recordings on a PC/Mac Mini and have the thousands of songs and playlists right at my fingertips via an iPad, etc.

And if I buy a few high resolution albums from DSD what format will they download in? Will iTunes be OK or should I use something like Jriver or Amarra?

Thanks again for all the help.

I'm beginning to make sense of things now. Since there are a few absolute things on my listening list, I will purchase them on CD. I'll research on how to put these various recording formats (SACD, DTS, 5.1 mixes, etc) into my harddrive, whatever that may be in the future.

For now I am going to connect my computer via USB and use iTunes for playback. I will also connect my Oppo BDP83 via optical to the Hegel and listen to the CD's I just purchased. That will give me a bit of instant gratification and a few days to listen to the system and figure out what to do.

I'm really thinking of going the Mac Mini and external HD route and connecting via toslink optical to the Hegel. Then I will use Jriver and distance myself from iTunes.

Another questions. I keep reading about the ability to EQ and adjust levels...that is exactly what I do not want. I'd like to listen to the recording as intended, not with some wild personal house mix added. Will all my music be required to be EQ'd and thus changing the sound?

I decided to try and make this simple for myself so I bought a Gen II Salk StreamPlayer, will connect via USB and will use my Oppo bdp83 for the few DVD and SACD's I own. I'll download mPod and mPad apps to control the Salk unit.