Hello all ! I just received my new MacBook Pro (2,4 Ghz - 250Go - 2Go ram), it works woderfull but I have the same problem as you !
It's impossible to install any Windows on it with BootCamp.
I tried to install a "modified" version of Xp SP2, an original Xp SP2 and an original Vista Business ! Boot camp creates the partition, it reboots with the windows cd or dvd in it and then there is a black screen with a flashing cursor, and my mac is waiting.
I have to force the reboot and extract the cd. It seems to be a new problem with the new macboo and macbook pro. Here is a subject with a guy having the same problem with a macbook
http://forum.macbidouille.com/index.php?showtopic=260845
This week I will call the Apple support, to have some explanations and have a fix of this problem.
Thanks all to help us 🙂