Eastbay DOES have the 2-piece Adidas Powerweb suits like Gay has worn in the past…but you have to work to find them.
For some reason, you don’t see this stuff if you just click on clothing. You have to go to the search bar and type in “Techfit” or “Powerweb”, and then you will find the cooler Adidas racing stuff. I bought the powerweb shorts from them this way. They are simply not advertised.
http://www.eastbay.com/searchresults/?Nao=0&Rpp=120&N=0&Ntt=techfit&cm_PAGE=rpp:120
Adidas also has a very cool singlet top that looks very much like what Nike has for their sponsored pros but won’t sell. I’m using this for racing with the powerweb shorts (white colors match, but I don’t know about the others). Eastbay does NOT have this, but you can find it here: