For those interested in the solution to this question, I did manage to finally solve this.
1) Setup WAMP to add PHP to a local server.
2) Download some free-ish software that allows you to verify large lists of proxies.
3) Create a proxy download script in iMacros that hits a dozen or so websites and extracts the public proxies.
4) Verify the 30,000+ proxies you now have extracted via your imacros script in step 3 through the software in step 2. Store the verified list somewhere for your future php/iMacros scripts to use.
5) Create a set of iMacros scripts to swap the proxy in firefox and test the one you currently swapped to (public proxies go down quickly so you need to re-test the given proxy just in case). Verify your current IP against any of the free-ip tests available on the net and use an extract in iMacros to return the value(s) to php.
6) Create a blacklist on the fly to avoid using the same ip-address/proxy (and your personal ip address)
7) Wrapper this all up into a sexy php class that you can include in future scripts to simply "getNewIP()" and you are done!
I did get some private messages for services that offer this but it is easily conquerable solo given lots of free tools (except for the iMacros registration...but you could just use the trial edition as I am on).
-Tester
