Rotating Proxies and Lists

I need to set up a rotating proxy for an application i am building. I have a cURL script that reads a page, but i need to seem like its not being called from the same IP address each time. I would like to have a list of proxies that i can rotate between each call i make.

I have looked at Glype and PHPproxy but both i cannot get to work correctly. Does anybody have any suggestions, script examples or good info web pages they can provide. I would be interested in using Glype or PHPproxy if someone can point me in a good direction to use them correctly. Otherwise anything else would be perfect as well.

Thanks much.

Cesar