is it good? i am considering a few ipods as my small music server. i already have around 120 gig of wav files. will the ipod produce cd quality sound that way? can it be upgraded to a bigger hard drive in the future? if anyone knows how to create a cheap but good sounding wav player / music server, please let me know. a pc is just too much for me : too much hassle. i hate windows and its intricacies. thank you.