yum repo

[Jeremy R Schmidt]

Anyone know of a good yum repo to use?
I'm going to try:
ftp://download.fedora.redhat.com/pub/fedora/linux/extras/4/i386/

Is this all I need if I want to install updates?
I'm using fc4, and my kernel is a 2.6.13.x (the speakup modified one).
The url I mentioned above  appears to just be for extras, so wil I need to 
use a different site?

If so, any recommendations?

Thanks,

Jeremy