I switched to a mac after pulling my hair out with several PCs over the years. For graphics work, photoshop etc.. it is fantastic. The stability is far superior to windows. There is a strange sort of 'trust' feeling you get whenever you do anything on a mac. You just feel that when you click it, and start on something else, everything will work out fine. Where on the PC you would click something and start on something else and something would crash somewhere or not work properly. Sounds daft, but it just seems to be that way.
The mac doesn't seem to slow down with age like the PC does. The OS takes a bit of getting used to, as does the mac keyboard layout, but it's well worth it in my opinion. Lack of viruses on a mac was one of the major reasons I made the switch...so far, no viruses, no anti-virus software. My anti virus subscription ran out on one of my PCs and within a week I had to do a system restore.
Consider the re-buying of software and hardware though. Most of my hardware worked plug n play on the mac, but my scanner didn't and you can't get a osx driver for it. I also had to re-buy the adobe cs premium software and a few other bits and bobs.
My conclusion (My opinion):
If I could afford to re-buy all of my music production software for the mac, I would smash all of my PC's up with a hammer and never use them again (although I would have to keep one for browser testing

) - I would avoid everything to do with windows!
EDIT: Oh! And Coda (Panic) is just the most amazing coding editor I have used and ain't available on anything else!
