Recording various music sources to Mac

[amin]

I have some vinyl, cassettes, and minidisc recordings that I want to get on my Mac Pro. Which of the following will give the best sound?

- Run through iMic -> USB
- Run through M-Audio Fast Track ->
- Run through my old, high-quality Amplifier -> line in jack

Thanks for any advice. I'm willing to buy the iMic or Fast Track if my recordings will come out cleaner.

 

[zimv20]

vinyl, cassettes, and minidisc

each has different requirements, so you should address each individually. the minidisc, for example, should be a digital-to-digital xfer, and you should avoid the 2 extra stages of conversion there.