Is it worth switching to a Mac?
raffi: I switched from Linux to OS X several years ago.  I tend to live on the command line so my experience is a bit different.First, I installed Fink which brings dselect and friends to MacOS X.  Fink let me install all the packages from Linux that I use.  For giggles, I installed the Apple X server and ran KDE from Fink.  It worked but felt sluggish.  I also realized this was very pointless and stopped doing it after 5 minutes.  Running X apps with the Apple Window Manager in rootless mode feels fast.I have Virtual PC on my G4 Powerbook.  It isn't fast but lets me test stuff in Windows when I have to.  I used to work off a Macbook Pro in an old job and found VMWare Fusion and Parallels were fantastic when I needed to do work in another OS.Overall I like it because its a UNIX I don't have to spend time administering.I notice your usage patterns/programs are different than mine.  Hopefully the perspective helps at least.  Good luck!