How many songs will a 40gig ipod hold?

That depends on size of the song files. Longer songs will be larger files, and will take up more space on the player. Typically, a 40 GB player will hold up to 10,000 songs. Amazon has a wide variety of MP3 players, and the reviews are often helpful: Amazon.com/MP3-Players-Audio-Video/b?ie=UTF8&node=172630">http://www.Amazon.com/MP3-Players-Audio-Video/b?ie=UTF8&node=172630