Well, actually there probably is, but it sounded dramatic anyways. I have somehow talked my better half into allowing me to purchase an Apple Mac Pro Desktop system which is due for assembly and shipping in the next week or so. In the last two years my typical computer based activity has been predominately music and to a lesser extent, video centered. That combined with the fairly recent change of all Apple processors to Intel (allowing windows to be run natively) has made the decision to change platforms more appealing and decidedly less risky.
My main reason for change is the (by all reports) much more stable and intuitive operating system, and the same user friendliness of the major software programs. I am looking at a couple of the mid level audio/video programs to start with since my needs are still fairly simple and because the full featured programs start to get prohibitive from a cost standpoint (especially if you're just a hobbyist like myself). One other positive aspect of the change is that my comprehensive software sequencer package from Native Instruments (Komplete4, Kore, Guitar Rig 2) will run on Mac as well as Windows, so I will be able to transfer all that software over, and most likely it will run as good if not better on the Mac.
The majority of programs I use regularly for practicing, composing and recording will all run on Mac. The only major exceptions are my DAW (Sonar) and Video Editing (Premiere Pro) programs. Considering that I have been relatively unhappy with the performance of both, I don't think I will miss them even if I start off with less featured programs. I hear good reviews of even the most basic programs (Ilife with it's packaged software that's targeted at consumers) so I'm optimistic that the starter versions of the standalone audio/video editors will suit my needs well.