Wireless N PCI adapter, Snow Leopard, 64-bit

[paulscode]

A search of the forums didn't reveal anything useful, so I'll start a new thread.

I am looking to buy a new Wireless N PCI adapter, and I want to get one that will work out-of-the-box in Snow Leopard, 64-bit (preferably one that is compatible on Windows XP and Linux as well). Any recommendations? I don't mind running an installation package or dropping in a kext, but the simpler the process the better. And please confirm if you've tried it first-hand, as well.