Where to buy 964 perfromance parts?

[warmfuzzies]

As the topic suggests really, I'm thinking of some upgrades to the old girl, things like peakier cams etc, so where do I get them from??

I've looked at 9m's site, but it's really never working properly in IE or Firefox, so that's off the menu, but I'm not sure about Stuttgart connection, Rennsport or others, hence my question to you guys/gals.

Thanks

kevin