i have pretty bad experience buying MP3 Players online, they all seem to have some type of problem...
I could get an used one (30GB) for $80 from my friend, but it might take awhile for him to sell it to me. But its about a year old, and i think he dropped it a couple of times, and since its an HDD kind, its bad for the player.
So far i rather get a new one and be safe, my friend wont give me an warranty, and i think that Zune wont last (With me) for another year. But it would be nice to free up some space on my PSP for movies, and be able to put all my music in there.