Speaking after the draw, Cardiff Blues Director of Coaching Dai Young said: "There's no real surprise that we've drawn against the Ospreys and I think most people would have put money on us getting them. However, one good thing is that we will definitely get a Welsh representative in the final which will be a big boost to Welsh rugby.
"It's a mouth watering fixture but there's a lot of rugby to be played between now and March. However, I'm sure both regions will be looking forward immensely to the competition and hopefully it will be a good spectacle for both sets of fans.
"I think the fact that there are two Welsh regions playing each other will always add a more little spice to the match; the players know each other really well and in the context of it being a semi-final of the EDF Energy Cup it looks like being a big occasion for the fans and the players alike.
"I'm sure both regions will also hope that they will be going into the match with full squads and without any injuries as it will be a highly competitive game with a high standard of rugby.
"The English sides that we've come up against so far had realistic chances of going through and fielded strong teams. Now it's at the business end of competition they will be even more focused on that game as it's also a route for them to get in to Europe next year."
In the other semi-final, Sale Sharks will take on Leicester Tigers with both matches being played at the Millennium Stadium on Saturday March 24th, 2007.
Tickets for the semi-final (access to both games) can be purchased from the Cardiff Blues Ticket Office on 029 2030 2030 or to buy online at www.cardiffblues.com.
Adults Middle Tier - £28
Junior Middle Tier - £14
Adults Lower Tier - £18
Junior Lower Tier - £9