The cheapest way to go is P2P (i.e.: Ares, Limewire, Kazaa), which is free.
However, this is probably the worst way to go as well. A lot of viruses, spyware, as well as the slight chance of getting caught by the RIAA for downloading music illegally.
no i disagree there is no such thing as spyware or viruses in limeware if r downloading music, videos or photos, but u might get spyware or viruses if u download a program.
Anyone who uses P2P exclusively, and doesn't buy music at all probably deserves it anyway.
Unless they've got a legit excuse, like living in a remote area...