Multiple Wordpress installs on one machine?

[Fetchez la vache]

What's the tried and tested method for having more than one Wordpress install on a single (development) machine?

I've done a worpress site for a local club and others have come forward wanting me to set one up for them too, so they would ultimately be on different domains when 'live'.

I'm using windows as well, currently using WAMP if that makes any difference.