If you go to apple.com and click on OS tab, on the left there is a thing called 'Boot Camp' this is a program that allows you to run a full version of Windows with no problems just like you would on any other PC or laptop. this Boot camp allows both Operating systems to work on the same computer (I don't think at the same time though, Virtual PC does, but that is for the older one's like mine but XP is a little slow on it.). OSX is basicly the same as Windows (infact it's the origional) but far better, faster,more reliable, easier to use and better looking.
yes he is a bit scary when it comes to Mac's but luckily I'm with him on this, I wouldn't wan't to be against now do I?!
Most Mac users are pationate about them like I'm sure you are with your Lex! :D