Wireless gamepad for Vista x64

Hello, I will soon buy a laptop with integrated bluetooth functionality and I would like to use a wireless gamepad with it. I have been searching the interwebs quite a lot and could not find the controller that fits my needs perfectly. Perhaps somebody in this forum has an idea?
I am looking for a gamepad that does the following:

- has a similar button layout to the Playstation or Xbox 360 controllers
- is wireless and works with bluetooth ( = doesn't need an extra receiver, I wouldn't want to hook up an extra cable when I'm on the go, for example, the official Xbox 360 controller for Windows has an extra receiver with a rather long, unhandy cable. However, if there was a receiver that is as big as a USB flash drive, that'd be ok. Bluetooth would be perfect, though.)
- works with Vista x64

I have taken a look at the Playstation 3 SIXAXIS or Dualshock 3 controller, and found it to be absolutely perfect for my needs. However, I heard that is doesn't work with Vista x64. Why does it fit my needs perfectly?
- It's a bluetooth device
- It doesn't need extra batteries and can be charged with a generic USB cable
- perfect button layout
-> But it doesn't work with Windows Vista x64 (but with x86)

The official Xbox 360 controller for PCs has also caught my attention, but:
- the receiver is not very handy when on the go. Not that much of a dealbreaker though...
- it uses AA batteries and a charger cable costs another 15€. It's getting quite costly if you ask me.
-> But it's guaranteed to work with Vista x64, that's a big plus.

So, does anyone know about any alternatives?