Vivaldi, Debussy, and Tchaikovsky are my favorite composers. There is a really good collection on MP3 on Amazon for $7.99 called '99 Essential Pieces of Classical Music.' The only downside is that the composers aren't listed, only the names of each piece and the orchestra performing. Here is the link if you are interested;
http://www.amazon.com/Most-Essential...05650&sr=301-1
Do you like instrumental "New Age" also?