I Love Logic Pro 9, has 5 DVDs of loops(MIDI and Audio)and very easy to use too. It's presets for Instruments and Mastering really help those who are just starting out! Virtual Instruments and FX Plug-ins galore! Way easier than Protools and updates have been free so far for me! Here is a song I made with some of the Loops and the Drum Kit and Sax are from Biab.
http://soundcloud.com/tommy_cole/nu-jazz