Tech in the Classroom

I am so excited to start using web 2.0 tools in my classroom. I think that they can be very valuable for enhancing student learning. I am always looking for ways to use technology with my students. My biggest concern with using any technology in the classroom is not knowing how to use it effectively. In my school, our district made it a priority to put a SmartBoard in every classroom, but despite several request we have never received any training on how to use them. Has anyone else had this issue? It is frustrating to be told to use something, but not taught how to use it.