Need More Music

I'm looking for good instrumental music. I love classical music but I listen to CBC Radio 2 and don't always take notice of who the composer was. iTunes has it's Classical 101 collections, I'm tempted to buy one of them but I really don't want opera. I always feel like I should be listening to and paying attention to the words, which is hard to do when I don't understand the language they are being sung in. *sigh*

Any suggestions welcome!