godaddy.com $8.95
but if you sign up thru buy.com's coupon link, it's only: $6.95
shhh!
http://registrar.godaddy.com/default.asp?isc=buye0804t
warning, if you plan on using the domains to spam, godaddy will delete the domain. otherwise, free locking, global changes, easy to push to other accounts, etc. good luck.