In order to be comfortable in having all the kit in time for the hack, we’re getting the first order in for some hackery gear today. The majority of the sensors are coming from Cool Components at the advice of the Bristol Hackspace guys, but we’re also getting some of the excellent Arduino kits from the very lovely Oomlout.
There are a good many kits available on the market today, but we’ve personal experience of using the oomlout ones- they really very complete and offer great value and a lot of flexibility (plus the wiring guides are genius!).
If anyone has any other suggestions for kit the comments, as ever are open.