My most used registrars with .COM .NET 6-7,5$ at Godaddy (with discounts) and Moniker:
Moniker end year specials for .COM .NET transfers, registrations and renewals:
http://www.webmasterinter.net/2009/1...-from-moniker/
Godaddy 30% discount:
http://www.webmasterinter.net/2009/1...-any-purchase/
Godaddy 6.99$ + 0,18$ icann fee and ONE TIME 0,99$ any TLD and 3$.COM:
http://www.webmasterinter.net/2009/1...count-coupons/