Full RSS/Feed Control

I’m currently trying to customize my RSS feeds in WordPress 2.8

I’d like full control over the output of my feeds and possibly want to stick with one format as well (likely Atom) while entirely disabling all other feeds. I also don’t have much reason to have comment feeds at all and would like to disable them as well.

I have found the code for causing the automatic feed links from being put into my header, but I’d like to completely disable the creation of the feeds themselves as to not have people grabbing any feed format where I haven’t already carefully setup the output as I’d like to.

Searching for plugins/help regarding this topic has been difficult. In previous versions of WordPress it seems all you needed to do was make a new feed template and you were off running. Now it seems like WordPress wants to dictate which feeds I use and also how they are displayed.

Then as a final (and far less important) note I’m also interested in using a sub-domain for my feeds as in feeds.whatever.net but also could find no information pertaining to how this is achieved via WordPress

Any ideas?

Thanks!