Can I list all feeds- including categories?

Hi all,

I hope someone more knowledgeable than I can offer some help on this one!

I want to create a static page where users can subscribe- not only to the central rss feeds from my wordpress blog- but to individual categories as well.

My blog covers multiple topics which aren’t always related (such as music, art, design, cyberculture), and I suspect a few users would rather subscribe to some categories and ignore others, which is why I want to create the page.

Is there a php command to call all category feeds?

Appreciating any input, Thank you,