I've been making all my stuff using Reason and am looking to upgrade to a ReWire host for it that supports audio tracks, tempo change, plugin automation, etc.

What are most of you using and why? Has any body used Mackie Tracktion? Since I'm not rich, that looks attractive, not to mention the 64-bit processing (for mixing "in the box"). What about Ableton Live, is that a good DAW for recording, or just performing?

What are your thoughts?