Please Help
 

I need to host a lot of music but dont want to spend a lot of money on bandwith, so is there some way I can host directly from my computer? And if yes then does that mean unlimited bandwith?

Most ISP's do not allow this, and if they find out your doing this, they will take action against you... and i mean action. Its just not something you do without checking your ISP's terms of use/service.

If they dont mind, then its really not too hard. Just google the topic.

BTW, sounds illegal :)

While it is true they do not allow it according to your TOS there are many who do this. The bad part comes when and if the provider decides to take action according to their TOS or when you are receiving huge download requests and your system cannot keep up. There are many hosts that have plans that are not expensive and with large amounts of bandwidth offered. This would be more prudent than running the risk of your ISP deciding to sue you or shut your service off.

why is it illegal?

Try Bittorrent,