16 May, 17:08
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The victory books them a place in Cardiff for the European final on Saturday May 21 and they will face the winners of tomorrow's second semi-final between Northampton Saints and Harlequins.
Even though the joy was happy to see in the Leinster camp after the game, O'Driscoll immediately stated his desire to lift a second Heineken Cup title with Leinster.
"Just making it to the final doesn't mean anything," said the Ireland centre.
"Northampton and Perpignan are very good sides and we will have our work cut out against either of them.
"It's going to be another huge day to look forward to and something for all the supporters to look forward to as well. They were fantastic out their today.
"Of course we are happy with the result but we will have to up our performance in the final.
"We were a little bit flat today and really didn't help ourselves at times but we ground out a good win.
"The intensity out there is so close to test match level. There are a lot of international match-ups on the field and it takes an awful lot to reach a semi-final of this competition and teams are certainly not going to roll over.
"Toulouse are the current champions and there is no way they were going to give up without a fight and they pushed us all the way to the death."