Hurray! I passed 70-542 ‘Technical Specialist: Microsoft Office Sharepoint Server 2007 – Application Development’! I was surprised by the sheer amount of BDC questions though, I’ll dig deeper in to it soon. Luckily the amount of online data of this API and this subject is plenty so it helped me out quite a lot in preparation.

You can find the exam preparation guide here: http://www.microsoft.com/learning/exams/70-542.mspx