I do and I love it.
I have always loved Mac's. I used a 512k Mac plus many years ago, but like a lot of people I ended up using Windows machines for years because of the cost, but I brought a G4 Mac mini and I fell in love with the Mac again.
They boot faster and they do what you want to do quicker and they are competitively priced, although most people don't realise it.
I got burgled in the spring and they took my Macbook and a old HP Windows XP portable and a new Windows Vista machine. Not needing two windows machines I brought a high end spec HP Windows Vista machine costing in excess of £950 and my £825 pound replacement Macbook is faster and a has more powerful processor.
I love my Mac it does what I tell it to do and it doesn't crash or overheat like the Windows machine.
My next machine will be a Mac.... I will never buy a Windows based PC again for home use.