I've never had a mac and I've only used them once outside of a retail store. However, web development is a perfect example of how two different things may look different and function differently and yet they can both be equally great and perform many different tasks. If I ever have enough money to play with and have a decent Windows based machine already, then I would love to invest in purchasing a Mac.
After watching the keynotes from the Apple WWDC, I must admit that the MacBook Pro has come a long way and looks absolutely phenomenal! However, I currently have my eye on the iPhone 3GS.