I have an ipod classic and when i try to turn it on a picture of the sad ipod icon. How do i fix it?

my ipod is 20GB and the screen colors are black and white. the outside of the ipod is white and the back is silver. fisrt of all when i connect it to the computer it wont show up in itunes or in the finder devices. second, the ipod shows a sad ipod icon whenever i try to turn it on and it also makes this weird noise, i spent more than i should've on this so i want my money's worth. should i try to fix it or sell it? and if i should sell it, where are some good places to sell it to?

Thanks