MultiProxy is a multifunctional personal proxy server that protects your privacy 
while on the Internet as well as speeds up your downloads, especially if you are
trying to get several files form overseas or from otherwise rather slow server.

It can also completely hide your IP address by dynamically connecting to non-
transparent anonymizing public proxy servers. 

You can also test a list of proxy servers and sort them by connection speed and 
level of anonimity ... MultiProxy is freeware.