Logic Pro 9 is a complete set of creative tools for any musician who wants to write, record, edit, and mix music. It comes with a massive collection of instruments, effects, and Apple Loops, making it easy to get amazing sounds and create amazing-sounding songs.
The download is only 413MB. The DVD version came with about 30GB of material so it’ll be interesting to see what was taken out.
UPDATE: As noted in the comments, there is an additional 19GB to download afterwards.
MainStage has also been moved to the Mac App Store and is only $29.99.