While waiting to procure some bamboo, I'm working on a wooden dowel model of one of the tower sections. I hope to discover the correct angles I'll need to drill for the connection holes on the bamboo poles. My gut feeling is that the ends are 90 degrees opposed, so that's where I'll begin. I won't get to that part until the weekend.
I think I may have located some LED lite strings at a reasonable price - the place is called Animated Lighting: http://www.animatedlighting.com/default.asp - they also have a lot on lighting control boxes designed for creating big animated light displays. More investigation required!