Thanks for your comments Chris and Screamer.
Made my mind up about the board. I'm going for the Isonic 133l. I got in contact with my distributor and he has a great offer for a new Isonic 133l 2008 (40% lower price than a 2009) + North Ram F8 9,9m2. Does that make a good cominbation or should I go for a 9.0m2 sail. Seems that most are using a 9.0m2.
What about the fin. Is the original fin that comes with the 2008 Isonic 133l big enough?