Wait for Nehalem

Ive been flirting with the thought of changing my good ol' beloved acer out with the apple

I live in Denmark and here the Macbook dont just cost a bit more but a lot more especially looking at the alternatives for instance a Dell XPS Studio.

But i Think macbooks just have that cool look and more performance than the parts would ever be able to promise for a PC,
and the stunning battery times (at the moment I can keep battery for about 30 minutes and i use it at school so its really anoying).

But i read many places on the internet, rumors about a new macbook in november with Nehalem/coreI7 processors and the way apple price their articles I can benefit from waiting half a year and get about twice performance for the same amount of money.

Does everybody agree with me.

But have anybody heard rumors about how many cores or what the possible clocking speed would be.
And what about GFX apple are probably not going with 9400m again. i would apreciate any kind of rumors people have read.
(and yes it is the 13" inch im going for its just a lot more pratical when going to school and when you at the same time just hate netbooks).