Yup, just like hjack pointed out, thats the 2 i use. I recomend reading the following too, before attempting to use this sort of software, since it does bring in a LARGE security issue.

http://www.faqs.org/rfcs/rfc2607.html

Its important that you understand what it is exactly, and how it works. Not just download and use it.
And never never use it if your gonna type anything sensitive, such as passwords, personal info etc.....

This so called proxy chaining also makes you vurnerable to a "man-in-the-middle" attack, where someone captures your packets (encrypted or not) and can resend them to gain access, as well as remote session hijacking. Also make sure if you use it that you have the correct proxies for the wanted use, such as "GET" for web, and "CONNECT" for other tcp connection type applications.

Cheers.