Just a quick heads up: Amazon.com is running a pretty good looking deal on a box set of Mozart's complete works. The package includes 170 CDs of music. And it also comes with a cd-rom containing essays on his works, artist bio's, text and libretti's. User reviews suggest that the recording quality is quite high. The box set is being sold for $74.99, or 50% off the normal list price. I'm not sure how long this sale will go on.
In the meantime, if you're more in the mood for some free Mozart, then spend some time with the classical music podcasts that we have indexed here.