Oven pride works mate, but I use caustic soda which is the agent in oven pride that does the stripping. You can get it from most chemist, b&q etc.
Just do it outside with gloves and googles and don't stand there breathing in the vapour!
![Wink ;)](http://www.radbmx.co.uk/forum/Smileys/smilies/wink.gif)
my thread on polishing rims shows the process.
Less hassle is to take them to a powder coater and get them 'aqua blastered', they guy I use charges £10 for 2 rims - lot less bother but not as much fun!
Enjoy!