"We are looking forward to this game, it's very important to us," said Moriarty.
"We have been targeting this all season. With the bad publicity they seniors have had, we have been concentrating on the Under-21 side. They have been our shining light
"There are plenty of quality players in this side John Thomas, Gareth Swales, Huw Bennett and Jonny Vaughton, all well established players to name but a few.
"Six players in the squad have received full time provincial contracts," he added.
And Cardiff Coach Mike Rayer hopes his team will go one step further than last season when they lost the final to Neath by 15-18.
He said: 'Injuries and first team calls have disrupted our season but we've had a good cup run and a great 28-0 win over Llanelli in the semi-final. We are able to call on several first team regulars like John Yapp and Robin Sowden-Taylor for the final and that is a huge boost for us. But Swansea are a quality outfit and like ourselves can include many youngsters with senior experience. It promises to be a great match.'
Cardiff: Leon Andrews; Elgan Jones, David Tame, Paul Niblett, Laurence Price; Gareth McCarthy, Chris Miller (captain); John Yapp, Ryan Price, Darren Fenton, Gareth Knight, Chris Stamatakis, Nick Hampson, James Malpas, Robin Sowden-Taylor
Gareth Swales; Gary Rombach, Chris Shelmerdine, Paul Mackey, Gareth Wright; James Horner, Darren Pittard; Lee May, Michael White, Rhodri Hamner, Louie Tomkin, Jack Dawson, Ian Evans Richie Pugh, Jonathan Thomas (Capt)