Well, I love the new iMac desktop I have at school, and the laptops are also gorgeous (apart from my niggle about the forward-delete key, not a problem on the desktop models).

One thing to consider: They have just changed operating systems from "Tiger" to "Leopard" (still part of the OS X platform) and - as always with anything new - there are still some bugs to be squished out of it. The local puter shop advised me to stay with Tiger and wait until Leopard's teething problems have been sorted, a decision I don't regret. Anyway, you can always upgrade your OS later (something that seems to be hassley/impossible on PC's from what I hear - never tried it).

So, my tuppence-worth is: iMac if you want a desktop, MacBook if you want a laptop, and stay with Tiger for the moment. (Nothing like the enthusiasm of a new convert, is there...)