The only thing I don't like about XP is how the media player snoops for unauthorized content. Everything works well; no virii, files work well, FR works well....
Should I be unhappy with this enough to buy a Mac?
XP? or Vista?
Only you can determine that. If it works for you, it works. I have client businesses that are still using Windows 98... because it does the job for them. I have on who is still using Windows 95 for a specific application to run an optical topographer... it would cost $10,000 to replace the machine with one that will work woth a later version of Windows.
I have other clients including businesses that switched to Macs and have never looked back... and refuse to look at Windows based software.