Wales trio Gareth Thomas, Leigh Halfpenny and Rhys Thomas have committed their futures to Cardiff.
Winger Halfpenny, 28, only made his debut for the Blues in May 2008, but has since gone on to win two caps and was included in Wales' squad for the forthcoming RBS Six Nations.
He has been integral in the club's journey to the Heineken Cup quarter-finals this term and has extended his deal until 2011.
Wales' record cap holder Gareth Thomas - a former Grand Slam winning captain and Heineken Cup winner with Toulouse - has put pen-to-paper on a contract that runs until the end of the 2010 season.
Hooker Rhys Thomas has also celebrated his century of appearances for the club this season and will stay at Cardiff Arms Park until 2011.
The agreements represent more good news for the Magners League side following recent extensions to keep Andy Powell, Gary Powell, Bradley Davies and Richie Rees.