Simple, cheap gyro for Arduino

I'm thinking about creating a game that would run on a computer but read input from a gyroscope. The easiest way of getting data from a gryo to a computer that I can think of is an Arduino, since I already have one.

So my question is: what would be a fairly inexpensive gyroscope that could easily be interfaced with an Arduino be?

It doesn't need to read really fast movements, since a human will be moving it. A one-axis gyro is enough for my current project, but if the price difference is small, I might consider a two or thee axis model to be compatible with future projects.

Thanks!

(Sorry if this topic has already been covered. I couldn't find other threads about this, but I bet there are some that are hiding from me.)

I'm using the gyro's from a Wii MotionPlus.

Check http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1245723011

That would get you 3-axis of gyro for about $30 ...

How about this?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=350242331908&ssPageName=ADME:B:FSEL:HK:1123

On paper, the wii is the more capable device. It's a three axis gyro and has a much higher full scale range (at least 500 degrees per second for the wii vs 100 for the ebay device)