working mini-pcie wlan card?

[pumpin]

hi
i currently have a notebook with an Intel 5100 mini-pcie wifi card - which is not supported by Os X and won't be the next time.
so i want to buy a new one (internal, and throw the old one away - so i don't want to buy any usb stuff).

So here's the question i need one that works under Win 7 also and that has Draft N.

Are there any not too expensive ones around??
thanks in advance