I use a Barberri (sp?), it seems okay, but I've only used a few times, and as I'm terrible at over lubing my experiences might not be the most reliable. The chain's certainly cleaner when it's been through the machine, but I like to take it off and give it a really thorough clean every so often. I got mine for about £7 UK (10 -11 US$ ? ) from
www.probikekit.com, they've probably still got them, but I don't know what stateside shipping is like (still you could always buy enough bits to make it more economic
).
Richard