Please try to use bittorrent to download and please leave your download client running after the download is complete (with ports 6881-6889 open) as your client will become part of the peer to peer bittorrent network and reduce the load on our network mirrors. If you need some quick pointers for getting up to speed on bittorrent read: http://www.centos.org/modules/smartfaq/faq.php?faqid=24
This is a RC and may not be suitable for use in production tasks.
Please add any errors or bugs you encounter to bugzilla on http://www.centos.org/bugs
Everyone please download and help make this the best release possible.