I just got a 4G iPod with iTunes - absolutely hate the program but iPods won't run without it so...
I'm running a Dell Inspiron 9100 3.2 GHz 1024 RAM and to rip a CD it takes about 10 secs a song to put it onto the comp, then the same again onto the iPod.
Not being too computer literate I can't offer much help but it'll give you something to measure it against!