(BTW, who needs RSS anymore? Atom is so much cleaner designed and thus easiert to handle with. I'm even planing use Atom as main format and generating my website from that ...)

I generate everything from Markdown source using PyBlosxom's static rendering (which has some issues that may eventually drive me to switch to something else or roll my own). It auto-generates RSS and Atom feeds, so it costs me nothing to have both just in case someone prefers RSS or can't use Atom for some reason.