After speaking to Jon, my lecturer, we have decided not to get hung up on which idea to take forward but instead PLAY around with the technology i will be using to MAKE my projects a reality. Jon has suggested to use PICAXE, a programming software that i used in high school, so i'm quite happy at that.
In order to start PLAYing with this technology, PICAXE chips need to be ordered and set up. Jon is arranging with Mike, to set up tutorials on getting started. Other than that, I'm not too sure what i can do, apart from narrow my ideas down.