WordPress MU

I am looking for a widget that would allow rss and email subscription to particular categories of the blog. Is this available? Can I have one built?

Thanks for any info

I'm pretty sure the rss feeds for categories & tags alreayd exists. It;s built in. Just put /feed/ at the end of it.

For email subscriptions, run that feed thru feedburner. they'll handle the email part.

I'm just going to use the WPMU sitewide feeds plugin and then take that feed and plug it into feedburner. Haven't done it yet...but I think it will work.