MacBook under XP: long experience users?

Hi,
I'm planning to eventually buy myself a MacBook. But I absolutely need XP on it.
Why that solution, because I like the design and feel of the MacBook, and it's quite light, not noisy... and I can always use OSX for basic needs... and train myself on that OS I know almost nothing about.
XP is mandatory for some of my activities, probably via Bootcamp only (some of the hardware I connect would probably not like a virtualisation).
I will probably do that when Leopard is out, and buy the cheapest one, since I can buy more ram and HD at quite a low price if needed (Proc speed should be more than enough on a 2Ghz dual core)

I wonder if some users do use a MacBook with XP on it, and if they use XP a lot, so that they can tell me the pros and cons of the solution.

Thanks a lot.