Just discovered this rather good list of spyware removers.
Some of them are the "standard" removers such as Spybot S&D, Ad-Aware, CWShredder etc, but some of the more specialist tools are also listed that really require guidance prior to using to make sure the correct tool is being used for the job!
There are a few on there that I don't immediately recognise, and one or two others that we probably wouldn't recommend.
However, it might prove to be quite a handy one-stop resource.