wayne - I have the new Tacx Taos cages which are some type of high impact plastic I believe. Only about $14 each from Excel and only about 38grs. They are cool, BUT I had to buy new bottles. I had "fat" water bottles and had to get some of the old "regular" ones. The Tacx design holds very well.
-------------------- "It is more important to do less more often than to do more less often" Ed Burke, PhD